Home / 87,689.23-131,553.33-40,916.59

Finding the Fourth Proportional to 87,689.23, 131,553.33 and 40,916.59

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Solution

The fourth proportional to 87,689.23, 131,553.33 and 40,916.59 is: 61,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689.23 : 131,553.33 = 40,916.59 : x
  2. Step 2: Convert to fraction form
    87,689.23/131,553.33 = 40,916.59/x
  3. Step 3: Cross multiply
    87,689.23x = 131,553.33 × 40,916.59
  4. Step 4: Simplify right side
    87,689.23x = 5,382,713,666.74
  5. Step 5: Solve for x
    x = 5,382,713,666.74/87,689.23
  6. Step 6: Final answer
    x = 61,383.98

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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.