Home / 81,504.30-122,256.45-34,761.90

Finding the Fourth Proportional to 81,504.30, 122,256.45 and 34,761.90

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Solution

The fourth proportional to 81,504.30, 122,256.45 and 34,761.90 is: 52,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504.30 : 122,256.45 = 34,761.90 : x
  2. Step 2: Convert to fraction form
    81,504.30/122,256.45 = 34,761.90/x
  3. Step 3: Cross multiply
    81,504.30x = 122,256.45 × 34,761.90
  4. Step 4: Simplify right side
    81,504.30x = 4,249,866,489.26
  5. Step 5: Solve for x
    x = 4,249,866,489.26/81,504.30
  6. Step 6: Final answer
    x = 52,142.85

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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.