Home / 99,966.78-150,024-47,376.42

Finding the Fourth Proportional to 99,966.78, 150,024 and 47,376.42

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Solution

The fourth proportional to 99,966.78, 150,024 and 47,376.42 is: 71,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,966.78 : 150,024 = 47,376.42 : x
  2. Step 2: Convert to fraction form
    99,966.78/150,024 = 47,376.42/x
  3. Step 3: Cross multiply
    99,966.78x = 150,024 × 47,376.42
  4. Step 4: Simplify right side
    99,966.78x = 7,107,600,034.08
  5. Step 5: Solve for x
    x = 7,107,600,034.08/99,966.78
  6. Step 6: Final answer
    x = 71,099.62

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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.