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Finding the Fourth Proportional to 89,503.20, 123,508.08 and 49,216.32

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Solution

The fourth proportional to 89,503.20, 123,508.08 and 49,216.32 is: 67,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,503.20 : 123,508.08 = 49,216.32 : x
  2. Step 2: Convert to fraction form
    89,503.20/123,508.08 = 49,216.32/x
  3. Step 3: Cross multiply
    89,503.20x = 123,508.08 × 49,216.32
  4. Step 4: Simplify right side
    89,503.20x = 6,078,613,187.87
  5. Step 5: Solve for x
    x = 6,078,613,187.87/89,503.20
  6. Step 6: Final answer
    x = 67,915.04

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