Home / 87,702.13-131,554.82-28,537.57

Finding the Fourth Proportional to 87,702.13, 131,554.82 and 28,537.57

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Solution

The fourth proportional to 87,702.13, 131,554.82 and 28,537.57 is: 42,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.13 : 131,554.82 = 28,537.57 : x
  2. Step 2: Convert to fraction form
    87,702.13/131,554.82 = 28,537.57/x
  3. Step 3: Cross multiply
    87,702.13x = 131,554.82 × 28,537.57
  4. Step 4: Simplify right side
    87,702.13x = 3,754,254,884.59
  5. Step 5: Solve for x
    x = 3,754,254,884.59/87,702.13
  6. Step 6: Final answer
    x = 42,806.88

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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.