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Finding the Fourth Proportional to 89,716, 123,808.08 and 52,012.12

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Solution

The fourth proportional to 89,716, 123,808.08 and 52,012.12 is: 71,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,716 : 123,808.08 = 52,012.12 : x
  2. Step 2: Convert to fraction form
    89,716/123,808.08 = 52,012.12/x
  3. Step 3: Cross multiply
    89,716x = 123,808.08 × 52,012.12
  4. Step 4: Simplify right side
    89,716x = 6,439,520,713.93
  5. Step 5: Solve for x
    x = 6,439,520,713.93/89,716
  6. Step 6: Final answer
    x = 71,776.73

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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.