Home / 87,729.98-131,597.40-28,569.20

Finding the Fourth Proportional to 87,729.98, 131,597.40 and 28,569.20

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Solution

The fourth proportional to 87,729.98, 131,597.40 and 28,569.20 is: 42,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.98 : 131,597.40 = 28,569.20 : x
  2. Step 2: Convert to fraction form
    87,729.98/131,597.40 = 28,569.20/x
  3. Step 3: Cross multiply
    87,729.98x = 131,597.40 × 28,569.20
  4. Step 4: Simplify right side
    87,729.98x = 3,759,632,440.08
  5. Step 5: Solve for x
    x = 3,759,632,440.08/87,729.98
  6. Step 6: Final answer
    x = 42,854.59

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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.