Home / 81,764.27-112,824.61-47,314.92

Finding the Fourth Proportional to 81,764.27, 112,824.61 and 47,314.92

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Solution

The fourth proportional to 81,764.27, 112,824.61 and 47,314.92 is: 65,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,764.27 : 112,824.61 = 47,314.92 : x
  2. Step 2: Convert to fraction form
    81,764.27/112,824.61 = 47,314.92/x
  3. Step 3: Cross multiply
    81,764.27x = 112,824.61 × 47,314.92
  4. Step 4: Simplify right side
    81,764.27x = 5,338,287,396.18
  5. Step 5: Solve for x
    x = 5,338,287,396.18/81,764.27
  6. Step 6: Final answer
    x = 65,288.76

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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.