Home / 81,557.58-122,321.79-22,385.46

Finding the Fourth Proportional to 81,557.58, 122,321.79 and 22,385.46

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Solution

The fourth proportional to 81,557.58, 122,321.79 and 22,385.46 is: 33,574.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,557.58 : 122,321.79 = 22,385.46 : x
  2. Step 2: Convert to fraction form
    81,557.58/122,321.79 = 22,385.46/x
  3. Step 3: Cross multiply
    81,557.58x = 122,321.79 × 22,385.46
  4. Step 4: Simplify right side
    81,557.58x = 2,738,229,537.17
  5. Step 5: Solve for x
    x = 2,738,229,537.17/81,557.58
  6. Step 6: Final answer
    x = 33,574.19

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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.