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Finding the Fourth Proportional to 89,293.92, 133,940.88 and 42,404.64

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Solution

The fourth proportional to 89,293.92, 133,940.88 and 42,404.64 is: 63,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,293.92 : 133,940.88 = 42,404.64 : x
  2. Step 2: Convert to fraction form
    89,293.92/133,940.88 = 42,404.64/x
  3. Step 3: Cross multiply
    89,293.92x = 133,940.88 × 42,404.64
  4. Step 4: Simplify right side
    89,293.92x = 5,679,714,797.68
  5. Step 5: Solve for x
    x = 5,679,714,797.68/89,293.92
  6. Step 6: Final answer
    x = 63,606.96

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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.