Home / 54,660.51-75,418.32-30,787.17

Finding the Fourth Proportional to 54,660.51, 75,418.32 and 30,787.17

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Solution

The fourth proportional to 54,660.51, 75,418.32 and 30,787.17 is: 42,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660.51 : 75,418.32 = 30,787.17 : x
  2. Step 2: Convert to fraction form
    54,660.51/75,418.32 = 30,787.17/x
  3. Step 3: Cross multiply
    54,660.51x = 75,418.32 × 30,787.17
  4. Step 4: Simplify right side
    54,660.51x = 2,321,916,638.95
  5. Step 5: Solve for x
    x = 2,321,916,638.95/54,660.51
  6. Step 6: Final answer
    x = 42,478.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.