Home / 99,669.20-149,500.56-40,487.36

Finding the Fourth Proportional to 99,669.20, 149,500.56 and 40,487.36

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Solution

The fourth proportional to 99,669.20, 149,500.56 and 40,487.36 is: 60,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,669.20 : 149,500.56 = 40,487.36 : x
  2. Step 2: Convert to fraction form
    99,669.20/149,500.56 = 40,487.36/x
  3. Step 3: Cross multiply
    99,669.20x = 149,500.56 × 40,487.36
  4. Step 4: Simplify right side
    99,669.20x = 6,052,882,992.92
  5. Step 5: Solve for x
    x = 6,052,882,992.92/99,669.20
  6. Step 6: Final answer
    x = 60,729.72

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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.