Home / 85,996.08-129,043.92-36,071.72

Finding the Fourth Proportional to 85,996.08, 129,043.92 and 36,071.72

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Solution

The fourth proportional to 85,996.08, 129,043.92 and 36,071.72 is: 54,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,996.08 : 129,043.92 = 36,071.72 : x
  2. Step 2: Convert to fraction form
    85,996.08/129,043.92 = 36,071.72/x
  3. Step 3: Cross multiply
    85,996.08x = 129,043.92 × 36,071.72
  4. Step 4: Simplify right side
    85,996.08x = 4,654,836,149.94
  5. Step 5: Solve for x
    x = 4,654,836,149.94/85,996.08
  6. Step 6: Final answer
    x = 54,128.47

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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.