Home / 89,712.18-123,793.53-55,251.42

Finding the Fourth Proportional to 89,712.18, 123,793.53 and 55,251.42

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Solution

The fourth proportional to 89,712.18, 123,793.53 and 55,251.42 is: 76,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712.18 : 123,793.53 = 55,251.42 : x
  2. Step 2: Convert to fraction form
    89,712.18/123,793.53 = 55,251.42/x
  3. Step 3: Cross multiply
    89,712.18x = 123,793.53 × 55,251.42
  4. Step 4: Simplify right side
    89,712.18x = 6,839,768,319.31
  5. Step 5: Solve for x
    x = 6,839,768,319.31/89,712.18
  6. Step 6: Final answer
    x = 76,241.25

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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.