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Finding the Fourth Proportional to 65,154.38, 89,863.83 and 45,044.91

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Solution

The fourth proportional to 65,154.38, 89,863.83 and 45,044.91 is: 62,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,154.38 : 89,863.83 = 45,044.91 : x
  2. Step 2: Convert to fraction form
    65,154.38/89,863.83 = 45,044.91/x
  3. Step 3: Cross multiply
    65,154.38x = 89,863.83 × 45,044.91
  4. Step 4: Simplify right side
    65,154.38x = 4,047,908,134.61
  5. Step 5: Solve for x
    x = 4,047,908,134.61/65,154.38
  6. Step 6: Final answer
    x = 62,127.96

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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.