Home / 82,305.28-113,583.36-50,491.76

Finding the Fourth Proportional to 82,305.28, 113,583.36 and 50,491.76

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Solution

The fourth proportional to 82,305.28, 113,583.36 and 50,491.76 is: 69,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,305.28 : 113,583.36 = 50,491.76 : x
  2. Step 2: Convert to fraction form
    82,305.28/113,583.36 = 50,491.76/x
  3. Step 3: Cross multiply
    82,305.28x = 113,583.36 × 50,491.76
  4. Step 4: Simplify right side
    82,305.28x = 5,735,023,753.11
  5. Step 5: Solve for x
    x = 5,735,023,753.11/82,305.28
  6. Step 6: Final answer
    x = 69,679.90

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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.