Home / 81,184.27-111,961.50-67,617.36

Finding the Fourth Proportional to 81,184.27, 111,961.50 and 67,617.36

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Solution

The fourth proportional to 81,184.27, 111,961.50 and 67,617.36 is: 93,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,184.27 : 111,961.50 = 67,617.36 : x
  2. Step 2: Convert to fraction form
    81,184.27/111,961.50 = 67,617.36/x
  3. Step 3: Cross multiply
    81,184.27x = 111,961.50 × 67,617.36
  4. Step 4: Simplify right side
    81,184.27x = 7,570,541,051.64
  5. Step 5: Solve for x
    x = 7,570,541,051.64/81,184.27
  6. Step 6: Final answer
    x = 93,251.33

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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.