Home / 99,517.72-149,338.09-40,353.90

Finding the Fourth Proportional to 99,517.72, 149,338.09 and 40,353.90

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Solution

The fourth proportional to 99,517.72, 149,338.09 and 40,353.90 is: 60,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,517.72 : 149,338.09 = 40,353.90 : x
  2. Step 2: Convert to fraction form
    99,517.72/149,338.09 = 40,353.90/x
  3. Step 3: Cross multiply
    99,517.72x = 149,338.09 × 40,353.90
  4. Step 4: Simplify right side
    99,517.72x = 6,026,373,401.59
  5. Step 5: Solve for x
    x = 6,026,373,401.59/99,517.72
  6. Step 6: Final answer
    x = 60,555.79

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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.