Home / 89,487.38-123,485.28-52,687.79

Finding the Fourth Proportional to 89,487.38, 123,485.28 and 52,687.79

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Solution

The fourth proportional to 89,487.38, 123,485.28 and 52,687.79 is: 72,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,487.38 : 123,485.28 = 52,687.79 : x
  2. Step 2: Convert to fraction form
    89,487.38/123,485.28 = 52,687.79/x
  3. Step 3: Cross multiply
    89,487.38x = 123,485.28 × 52,687.79
  4. Step 4: Simplify right side
    89,487.38x = 6,506,165,883.30
  5. Step 5: Solve for x
    x = 6,506,165,883.30/89,487.38
  6. Step 6: Final answer
    x = 72,704.85

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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.