Home / 52,271.28-72,135.05-28,398.38

Finding the Fourth Proportional to 52,271.28, 72,135.05 and 28,398.38

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Solution

The fourth proportional to 52,271.28, 72,135.05 and 28,398.38 is: 39,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,271.28 : 72,135.05 = 28,398.38 : x
  2. Step 2: Convert to fraction form
    52,271.28/72,135.05 = 28,398.38/x
  3. Step 3: Cross multiply
    52,271.28x = 72,135.05 × 28,398.38
  4. Step 4: Simplify right side
    52,271.28x = 2,048,518,058.55
  5. Step 5: Solve for x
    x = 2,048,518,058.55/52,271.28
  6. Step 6: Final answer
    x = 39,190.13

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Half scale
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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.