Home / 87,818.30-121,188.50-47,531.71

Finding the Fourth Proportional to 87,818.30, 121,188.50 and 47,531.71

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Solution

The fourth proportional to 87,818.30, 121,188.50 and 47,531.71 is: 65,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.30 : 121,188.50 = 47,531.71 : x
  2. Step 2: Convert to fraction form
    87,818.30/121,188.50 = 47,531.71/x
  3. Step 3: Cross multiply
    87,818.30x = 121,188.50 × 47,531.71
  4. Step 4: Simplify right side
    87,818.30x = 5,760,296,996.77
  5. Step 5: Solve for x
    x = 5,760,296,996.77/87,818.30
  6. Step 6: Final answer
    x = 65,593.35

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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.