Home / 85,279.12-127,948.19-29,158.73

Finding the Fourth Proportional to 85,279.12, 127,948.19 and 29,158.73

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Solution

The fourth proportional to 85,279.12, 127,948.19 and 29,158.73 is: 43,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.12 : 127,948.19 = 29,158.73 : x
  2. Step 2: Convert to fraction form
    85,279.12/127,948.19 = 29,158.73/x
  3. Step 3: Cross multiply
    85,279.12x = 127,948.19 × 29,158.73
  4. Step 4: Simplify right side
    85,279.12x = 3,730,806,900.28
  5. Step 5: Solve for x
    x = 3,730,806,900.28/85,279.12
  6. Step 6: Final answer
    x = 43,748.19

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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.