Home / 99,923.52-149,781.12-40,734.72

Finding the Fourth Proportional to 99,923.52, 149,781.12 and 40,734.72

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Solution

The fourth proportional to 99,923.52, 149,781.12 and 40,734.72 is: 61,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,923.52 : 149,781.12 = 40,734.72 : x
  2. Step 2: Convert to fraction form
    99,923.52/149,781.12 = 40,734.72/x
  3. Step 3: Cross multiply
    99,923.52x = 149,781.12 × 40,734.72
  4. Step 4: Simplify right side
    99,923.52x = 6,101,291,984.49
  5. Step 5: Solve for x
    x = 6,101,291,984.49/99,923.52
  6. Step 6: Final answer
    x = 61,059.62

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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.