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Finding the Fourth Proportional to 90,772.92, 135,926.10 and 55,605.96

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Solution

The fourth proportional to 90,772.92, 135,926.10 and 55,605.96 is: 83,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,772.92 : 135,926.10 = 55,605.96 : x
  2. Step 2: Convert to fraction form
    90,772.92/135,926.10 = 55,605.96/x
  3. Step 3: Cross multiply
    90,772.92x = 135,926.10 × 55,605.96
  4. Step 4: Simplify right side
    90,772.92x = 7,558,301,279.56
  5. Step 5: Solve for x
    x = 7,558,301,279.56/90,772.92
  6. Step 6: Final answer
    x = 83,266.04

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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.