Home / 52,140.78-71,951.39-29,478.33

Finding the Fourth Proportional to 52,140.78, 71,951.39 and 29,478.33

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Solution

The fourth proportional to 52,140.78, 71,951.39 and 29,478.33 is: 40,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,140.78 : 71,951.39 = 29,478.33 : x
  2. Step 2: Convert to fraction form
    52,140.78/71,951.39 = 29,478.33/x
  3. Step 3: Cross multiply
    52,140.78x = 71,951.39 × 29,478.33
  4. Step 4: Simplify right side
    52,140.78x = 2,121,006,781.53
  5. Step 5: Solve for x
    x = 2,121,006,781.53/52,140.78
  6. Step 6: Final answer
    x = 40,678.47

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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.