Home / 82,819.28-114,261.49-54,155.71

Finding the Fourth Proportional to 82,819.28, 114,261.49 and 54,155.71

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Solution

The fourth proportional to 82,819.28, 114,261.49 and 54,155.71 is: 74,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,819.28 : 114,261.49 = 54,155.71 : x
  2. Step 2: Convert to fraction form
    82,819.28/114,261.49 = 54,155.71/x
  3. Step 3: Cross multiply
    82,819.28x = 114,261.49 × 54,155.71
  4. Step 4: Simplify right side
    82,819.28x = 6,187,912,327.13
  5. Step 5: Solve for x
    x = 6,187,912,327.13/82,819.28
  6. Step 6: Final answer
    x = 74,715.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.