Home / 81,219.50-121,815.27-22,059.93

Finding the Fourth Proportional to 81,219.50, 121,815.27 and 22,059.93

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Solution

The fourth proportional to 81,219.50, 121,815.27 and 22,059.93 is: 33,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,219.50 : 121,815.27 = 22,059.93 : x
  2. Step 2: Convert to fraction form
    81,219.50/121,815.27 = 22,059.93/x
  3. Step 3: Cross multiply
    81,219.50x = 121,815.27 × 22,059.93
  4. Step 4: Simplify right side
    81,219.50x = 2,687,236,329.13
  5. Step 5: Solve for x
    x = 2,687,236,329.13/81,219.50
  6. Step 6: Final answer
    x = 33,086.10

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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.