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Finding the Fourth Proportional to 89,992.89, 134,862.84 and 40,012.65

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Solution

The fourth proportional to 89,992.89, 134,862.84 and 40,012.65 is: 59,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,992.89 : 134,862.84 = 40,012.65 : x
  2. Step 2: Convert to fraction form
    89,992.89/134,862.84 = 40,012.65/x
  3. Step 3: Cross multiply
    89,992.89x = 134,862.84 × 40,012.65
  4. Step 4: Simplify right side
    89,992.89x = 5,396,219,614.93
  5. Step 5: Solve for x
    x = 5,396,219,614.93/89,992.89
  6. Step 6: Final answer
    x = 59,962.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.