Home / 81,193.12-121,775.31-22,033.40

Finding the Fourth Proportional to 81,193.12, 121,775.31 and 22,033.40

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Solution

The fourth proportional to 81,193.12, 121,775.31 and 22,033.40 is: 33,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.12 : 121,775.31 = 22,033.40 : x
  2. Step 2: Convert to fraction form
    81,193.12/121,775.31 = 22,033.40/x
  3. Step 3: Cross multiply
    81,193.12x = 121,775.31 × 22,033.40
  4. Step 4: Simplify right side
    81,193.12x = 2,683,123,506.48
  5. Step 5: Solve for x
    x = 2,683,123,506.48/81,193.12
  6. Step 6: Final answer
    x = 33,046.19

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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.