Home / 87,390.55-120,654.38-59,841.32

Finding the Fourth Proportional to 87,390.55, 120,654.38 and 59,841.32

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Solution

The fourth proportional to 87,390.55, 120,654.38 and 59,841.32 is: 82,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,390.55 : 120,654.38 = 59,841.32 : x
  2. Step 2: Convert to fraction form
    87,390.55/120,654.38 = 59,841.32/x
  3. Step 3: Cross multiply
    87,390.55x = 120,654.38 × 59,841.32
  4. Step 4: Simplify right side
    87,390.55x = 7,220,117,081.72
  5. Step 5: Solve for x
    x = 7,220,117,081.72/87,390.55
  6. Step 6: Final answer
    x = 82,618.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.