Home / 85,031.59-117,505.43-63,773.95

Finding the Fourth Proportional to 85,031.59, 117,505.43 and 63,773.95

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Solution

The fourth proportional to 85,031.59, 117,505.43 and 63,773.95 is: 88,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,031.59 : 117,505.43 = 63,773.95 : x
  2. Step 2: Convert to fraction form
    85,031.59/117,505.43 = 63,773.95/x
  3. Step 3: Cross multiply
    85,031.59x = 117,505.43 × 63,773.95
  4. Step 4: Simplify right side
    85,031.59x = 7,493,785,417.55
  5. Step 5: Solve for x
    x = 7,493,785,417.55/85,031.59
  6. Step 6: Final answer
    x = 88,129.43

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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.