Home / 87,645.95-131,365.10-40,221.07

Finding the Fourth Proportional to 87,645.95, 131,365.10 and 40,221.07

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Solution

The fourth proportional to 87,645.95, 131,365.10 and 40,221.07 is: 60,283.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.95 : 131,365.10 = 40,221.07 : x
  2. Step 2: Convert to fraction form
    87,645.95/131,365.10 = 40,221.07/x
  3. Step 3: Cross multiply
    87,645.95x = 131,365.10 × 40,221.07
  4. Step 4: Simplify right side
    87,645.95x = 5,283,644,654.80
  5. Step 5: Solve for x
    x = 5,283,644,654.80/87,645.95
  6. Step 6: Final answer
    x = 60,283.96

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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.