Home / 52,139.12-71,952.08-28,265.90

Finding the Fourth Proportional to 52,139.12, 71,952.08 and 28,265.90

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Solution

The fourth proportional to 52,139.12, 71,952.08 and 28,265.90 is: 39,006.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,139.12 : 71,952.08 = 28,265.90 : x
  2. Step 2: Convert to fraction form
    52,139.12/71,952.08 = 28,265.90/x
  3. Step 3: Cross multiply
    52,139.12x = 71,952.08 × 28,265.90
  4. Step 4: Simplify right side
    52,139.12x = 2,033,789,796.98
  5. Step 5: Solve for x
    x = 2,033,789,796.98/52,139.12
  6. Step 6: Final answer
    x = 39,006.99

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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.