Home / 121,579.80-182,351.46-38,463

Finding the Fourth Proportional to 121,579.80, 182,351.46 and 38,463

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Solution

The fourth proportional to 121,579.80, 182,351.46 and 38,463 is: 57,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,579.80 : 182,351.46 = 38,463 : x
  2. Step 2: Convert to fraction form
    121,579.80/182,351.46 = 38,463/x
  3. Step 3: Cross multiply
    121,579.80x = 182,351.46 × 38,463
  4. Step 4: Simplify right side
    121,579.80x = 7,013,784,205.98
  5. Step 5: Solve for x
    x = 7,013,784,205.98/121,579.80
  6. Step 6: Final answer
    x = 57,688.73

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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.