Home / 54,535.31-81,787.15-21,247.95

Finding the Fourth Proportional to 54,535.31, 81,787.15 and 21,247.95

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Solution

The fourth proportional to 54,535.31, 81,787.15 and 21,247.95 is: 31,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,535.31 : 81,787.15 = 21,247.95 : x
  2. Step 2: Convert to fraction form
    54,535.31/81,787.15 = 21,247.95/x
  3. Step 3: Cross multiply
    54,535.31x = 81,787.15 × 21,247.95
  4. Step 4: Simplify right side
    54,535.31x = 1,737,809,167.60
  5. Step 5: Solve for x
    x = 1,737,809,167.60/54,535.31
  6. Step 6: Final answer
    x = 31,865.76

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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.