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Finding the Fourth Proportional to 89,154.70, 123,035.02 and 48,865.91

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Solution

The fourth proportional to 89,154.70, 123,035.02 and 48,865.91 is: 67,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,154.70 : 123,035.02 = 48,865.91 : x
  2. Step 2: Convert to fraction form
    89,154.70/123,035.02 = 48,865.91/x
  3. Step 3: Cross multiply
    89,154.70x = 123,035.02 × 48,865.91
  4. Step 4: Simplify right side
    89,154.70x = 6,012,217,476.83
  5. Step 5: Solve for x
    x = 6,012,217,476.83/89,154.70
  6. Step 6: Final answer
    x = 67,435.79

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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.