Home / 50,920.11-70,270.38-28,259.55

Finding the Fourth Proportional to 50,920.11, 70,270.38 and 28,259.55

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Solution

The fourth proportional to 50,920.11, 70,270.38 and 28,259.55 is: 38,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,920.11 : 70,270.38 = 28,259.55 : x
  2. Step 2: Convert to fraction form
    50,920.11/70,270.38 = 28,259.55/x
  3. Step 3: Cross multiply
    50,920.11x = 70,270.38 × 28,259.55
  4. Step 4: Simplify right side
    50,920.11x = 1,985,809,317.13
  5. Step 5: Solve for x
    x = 1,985,809,317.13/50,920.11
  6. Step 6: Final answer
    x = 38,998.53

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Double scale
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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.