Home / 99,659.20-149,529.12-40,479.52

Finding the Fourth Proportional to 99,659.20, 149,529.12 and 40,479.52

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Solution

The fourth proportional to 99,659.20, 149,529.12 and 40,479.52 is: 60,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,659.20 : 149,529.12 = 40,479.52 : x
  2. Step 2: Convert to fraction form
    99,659.20/149,529.12 = 40,479.52/x
  3. Step 3: Cross multiply
    99,659.20x = 149,529.12 × 40,479.52
  4. Step 4: Simplify right side
    99,659.20x = 6,052,867,003.62
  5. Step 5: Solve for x
    x = 6,052,867,003.62/99,659.20
  6. Step 6: Final answer
    x = 60,735.66

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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.