Home / 87,854.41-131,781.25-21,294.46

Finding the Fourth Proportional to 87,854.41, 131,781.25 and 21,294.46

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Solution

The fourth proportional to 87,854.41, 131,781.25 and 21,294.46 is: 31,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.41 : 131,781.25 = 21,294.46 : x
  2. Step 2: Convert to fraction form
    87,854.41/131,781.25 = 21,294.46/x
  3. Step 3: Cross multiply
    87,854.41x = 131,781.25 × 21,294.46
  4. Step 4: Simplify right side
    87,854.41x = 2,806,210,556.88
  5. Step 5: Solve for x
    x = 2,806,210,556.88/87,854.41
  6. Step 6: Final answer
    x = 31,941.60

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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.