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Finding the Fourth Proportional to 89,296.92, 133,945.38 and 42,407.64

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Solution

The fourth proportional to 89,296.92, 133,945.38 and 42,407.64 is: 63,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,296.92 : 133,945.38 = 42,407.64 : x
  2. Step 2: Convert to fraction form
    89,296.92/133,945.38 = 42,407.64/x
  3. Step 3: Cross multiply
    89,296.92x = 133,945.38 × 42,407.64
  4. Step 4: Simplify right side
    89,296.92x = 5,680,307,454.70
  5. Step 5: Solve for x
    x = 5,680,307,454.70/89,296.92
  6. Step 6: Final answer
    x = 63,611.46

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Similar ratio
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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.