Home / 87,382.26-131,031.98-30,436.31

Finding the Fourth Proportional to 87,382.26, 131,031.98 and 30,436.31

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Solution

The fourth proportional to 87,382.26, 131,031.98 and 30,436.31 is: 45,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,382.26 : 131,031.98 = 30,436.31 : x
  2. Step 2: Convert to fraction form
    87,382.26/131,031.98 = 30,436.31/x
  3. Step 3: Cross multiply
    87,382.26x = 131,031.98 × 30,436.31
  4. Step 4: Simplify right side
    87,382.26x = 3,988,129,515.67
  5. Step 5: Solve for x
    x = 3,988,129,515.67/87,382.26
  6. Step 6: Final answer
    x = 45,640.04

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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.