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Finding the Fourth Proportional to 89,745.68, 123,829.08 and 51,502.88

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Solution

The fourth proportional to 89,745.68, 123,829.08 and 51,502.88 is: 71,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,745.68 : 123,829.08 = 51,502.88 : x
  2. Step 2: Convert to fraction form
    89,745.68/123,829.08 = 51,502.88/x
  3. Step 3: Cross multiply
    89,745.68x = 123,829.08 × 51,502.88
  4. Step 4: Simplify right side
    89,745.68x = 6,377,554,247.75
  5. Step 5: Solve for x
    x = 6,377,554,247.75/89,745.68
  6. Step 6: Final answer
    x = 71,062.52

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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.