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Finding the Fourth Proportional to 99,519, 149,277.57 and 40,340.61

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Solution

The fourth proportional to 99,519, 149,277.57 and 40,340.61 is: 60,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,519 : 149,277.57 = 40,340.61 : x
  2. Step 2: Convert to fraction form
    99,519/149,277.57 = 40,340.61/x
  3. Step 3: Cross multiply
    99,519x = 149,277.57 × 40,340.61
  4. Step 4: Simplify right side
    99,519x = 6,021,948,233.12
  5. Step 5: Solve for x
    x = 6,021,948,233.12/99,519
  6. Step 6: Final answer
    x = 60,510.54

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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.