Home / 81,811.87-122,704.14-22,653.52

Finding the Fourth Proportional to 81,811.87, 122,704.14 and 22,653.52

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Solution

The fourth proportional to 81,811.87, 122,704.14 and 22,653.52 is: 33,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811.87 : 122,704.14 = 22,653.52 : x
  2. Step 2: Convert to fraction form
    81,811.87/122,704.14 = 22,653.52/x
  3. Step 3: Cross multiply
    81,811.87x = 122,704.14 × 22,653.52
  4. Step 4: Simplify right side
    81,811.87x = 2,779,680,689.57
  5. Step 5: Solve for x
    x = 2,779,680,689.57/81,811.87
  6. Step 6: Final answer
    x = 33,976.50

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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.