Home / 52,139.68-71,951.82-29,478.28

Finding the Fourth Proportional to 52,139.68, 71,951.82 and 29,478.28

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Solution

The fourth proportional to 52,139.68, 71,951.82 and 29,478.28 is: 40,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,139.68 : 71,951.82 = 29,478.28 : x
  2. Step 2: Convert to fraction form
    52,139.68/71,951.82 = 29,478.28/x
  3. Step 3: Cross multiply
    52,139.68x = 71,951.82 × 29,478.28
  4. Step 4: Simplify right side
    52,139.68x = 2,121,015,896.47
  5. Step 5: Solve for x
    x = 2,121,015,896.47/52,139.68
  6. Step 6: Final answer
    x = 40,679.50

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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.