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Finding the Fourth Proportional to 89,221.52, 123,125.52 and 51,495.74

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Solution

The fourth proportional to 89,221.52, 123,125.52 and 51,495.74 is: 71,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,221.52 : 123,125.52 = 51,495.74 : x
  2. Step 2: Convert to fraction form
    89,221.52/123,125.52 = 51,495.74/x
  3. Step 3: Cross multiply
    89,221.52x = 123,125.52 × 51,495.74
  4. Step 4: Simplify right side
    89,221.52x = 6,340,439,765.28
  5. Step 5: Solve for x
    x = 6,340,439,765.28/89,221.52
  6. Step 6: Final answer
    x = 71,064.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.