Home / 81,758.76-112,839.99-47,787.36

Finding the Fourth Proportional to 81,758.76, 112,839.99 and 47,787.36

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Solution

The fourth proportional to 81,758.76, 112,839.99 and 47,787.36 is: 65,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,758.76 : 112,839.99 = 47,787.36 : x
  2. Step 2: Convert to fraction form
    81,758.76/112,839.99 = 47,787.36/x
  3. Step 3: Cross multiply
    81,758.76x = 112,839.99 × 47,787.36
  4. Step 4: Simplify right side
    81,758.76x = 5,392,325,224.53
  5. Step 5: Solve for x
    x = 5,392,325,224.53/81,758.76
  6. Step 6: Final answer
    x = 65,954.10

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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.