Home / 50,920.47-70,270.16-28,259.74

Finding the Fourth Proportional to 50,920.47, 70,270.16 and 28,259.74

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Solution

The fourth proportional to 50,920.47, 70,270.16 and 28,259.74 is: 38,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,920.47 : 70,270.16 = 28,259.74 : x
  2. Step 2: Convert to fraction form
    50,920.47/70,270.16 = 28,259.74/x
  3. Step 3: Cross multiply
    50,920.47x = 70,270.16 × 28,259.74
  4. Step 4: Simplify right side
    50,920.47x = 1,985,816,082.11
  5. Step 5: Solve for x
    x = 1,985,816,082.11/50,920.47
  6. Step 6: Final answer
    x = 38,998.38

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Half scale
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Double scale
Find fourth proportional to 50,921.47, 70,271.54 and 28,260.74
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.