Home / 81,284.28-112,177.18-45,474.50

Finding the Fourth Proportional to 81,284.28, 112,177.18 and 45,474.50

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Solution

The fourth proportional to 81,284.28, 112,177.18 and 45,474.50 is: 62,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,284.28 : 112,177.18 = 45,474.50 : x
  2. Step 2: Convert to fraction form
    81,284.28/112,177.18 = 45,474.50/x
  3. Step 3: Cross multiply
    81,284.28x = 112,177.18 × 45,474.50
  4. Step 4: Simplify right side
    81,284.28x = 5,101,201,171.91
  5. Step 5: Solve for x
    x = 5,101,201,171.91/81,284.28
  6. Step 6: Final answer
    x = 62,757.54

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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.