Home / 87,706.31-131,559.15-31,546.32

Finding the Fourth Proportional to 87,706.31, 131,559.15 and 31,546.32

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Solution

The fourth proportional to 87,706.31, 131,559.15 and 31,546.32 is: 47,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,706.31 : 131,559.15 = 31,546.32 : x
  2. Step 2: Convert to fraction form
    87,706.31/131,559.15 = 31,546.32/x
  3. Step 3: Cross multiply
    87,706.31x = 131,559.15 × 31,546.32
  4. Step 4: Simplify right side
    87,706.31x = 4,150,207,044.83
  5. Step 5: Solve for x
    x = 4,150,207,044.83/87,706.31
  6. Step 6: Final answer
    x = 47,319.37

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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.