Home / 87,581.64-131,391.63-28,423.26

Finding the Fourth Proportional to 87,581.64, 131,391.63 and 28,423.26

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Solution

The fourth proportional to 87,581.64, 131,391.63 and 28,423.26 is: 42,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.64 : 131,391.63 = 28,423.26 : x
  2. Step 2: Convert to fraction form
    87,581.64/131,391.63 = 28,423.26/x
  3. Step 3: Cross multiply
    87,581.64x = 131,391.63 × 28,423.26
  4. Step 4: Simplify right side
    87,581.64x = 3,734,578,461.31
  5. Step 5: Solve for x
    x = 3,734,578,461.31/87,581.64
  6. Step 6: Final answer
    x = 42,641.11

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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.