Home / 99,815.05-149,597.99-49,909.43

Finding the Fourth Proportional to 99,815.05, 149,597.99 and 49,909.43

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Solution

The fourth proportional to 99,815.05, 149,597.99 and 49,909.43 is: 74,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815.05 : 149,597.99 = 49,909.43 : x
  2. Step 2: Convert to fraction form
    99,815.05/149,597.99 = 49,909.43/x
  3. Step 3: Cross multiply
    99,815.05x = 149,597.99 × 49,909.43
  4. Step 4: Simplify right side
    99,815.05x = 7,466,350,721.65
  5. Step 5: Solve for x
    x = 7,466,350,721.65/99,815.05
  6. Step 6: Final answer
    x = 74,801.85

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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.