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Finding the Fourth Proportional to 89,902.88, 124,040.40 and 54,074.96

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Solution

The fourth proportional to 89,902.88, 124,040.40 and 54,074.96 is: 74,608.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,902.88 : 124,040.40 = 54,074.96 : x
  2. Step 2: Convert to fraction form
    89,902.88/124,040.40 = 54,074.96/x
  3. Step 3: Cross multiply
    89,902.88x = 124,040.40 × 54,074.96
  4. Step 4: Simplify right side
    89,902.88x = 6,707,479,668.38
  5. Step 5: Solve for x
    x = 6,707,479,668.38/89,902.88
  6. Step 6: Final answer
    x = 74,608.06

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1.5x scale

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.