Home / 54,535.48-81,787.32-21,248.12

Finding the Fourth Proportional to 54,535.48, 81,787.32 and 21,248.12

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Solution

The fourth proportional to 54,535.48, 81,787.32 and 21,248.12 is: 31,865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,535.48 : 81,787.32 = 21,248.12 : x
  2. Step 2: Convert to fraction form
    54,535.48/81,787.32 = 21,248.12/x
  3. Step 3: Cross multiply
    54,535.48x = 81,787.32 × 21,248.12
  4. Step 4: Simplify right side
    54,535.48x = 1,737,826,994.31
  5. Step 5: Solve for x
    x = 1,737,826,994.31/54,535.48
  6. Step 6: Final answer
    x = 31,865.99

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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.