Home / 87,702.17-131,554.47-28,538.15

Finding the Fourth Proportional to 87,702.17, 131,554.47 and 28,538.15

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Solution

The fourth proportional to 87,702.17, 131,554.47 and 28,538.15 is: 42,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.17 : 131,554.47 = 28,538.15 : x
  2. Step 2: Convert to fraction form
    87,702.17/131,554.47 = 28,538.15/x
  3. Step 3: Cross multiply
    87,702.17x = 131,554.47 × 28,538.15
  4. Step 4: Simplify right side
    87,702.17x = 3,754,321,198.03
  5. Step 5: Solve for x
    x = 3,754,321,198.03/87,702.17
  6. Step 6: Final answer
    x = 42,807.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.