Home / 81,672.96-122,534.01-67,569.24

Finding the Fourth Proportional to 81,672.96, 122,534.01 and 67,569.24

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Solution

The fourth proportional to 81,672.96, 122,534.01 and 67,569.24 is: 101,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,672.96 : 122,534.01 = 67,569.24 : x
  2. Step 2: Convert to fraction form
    81,672.96/122,534.01 = 67,569.24/x
  3. Step 3: Cross multiply
    81,672.96x = 122,534.01 × 67,569.24
  4. Step 4: Simplify right side
    81,672.96x = 8,279,529,929.85
  5. Step 5: Solve for x
    x = 8,279,529,929.85/81,672.96
  6. Step 6: Final answer
    x = 101,374.19

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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.