Home / 81,385.42-122,071.20-25,224.26

Finding the Fourth Proportional to 81,385.42, 122,071.20 and 25,224.26

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Solution

The fourth proportional to 81,385.42, 122,071.20 and 25,224.26 is: 37,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,385.42 : 122,071.20 = 25,224.26 : x
  2. Step 2: Convert to fraction form
    81,385.42/122,071.20 = 25,224.26/x
  3. Step 3: Cross multiply
    81,385.42x = 122,071.20 × 25,224.26
  4. Step 4: Simplify right side
    81,385.42x = 3,079,155,687.31
  5. Step 5: Solve for x
    x = 3,079,155,687.31/81,385.42
  6. Step 6: Final answer
    x = 37,834.24

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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.