Home / 79,787.28-110,083.56-51,509.04

Finding the Fourth Proportional to 79,787.28, 110,083.56 and 51,509.04

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Solution

The fourth proportional to 79,787.28, 110,083.56 and 51,509.04 is: 71,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,787.28 : 110,083.56 = 51,509.04 : x
  2. Step 2: Convert to fraction form
    79,787.28/110,083.56 = 51,509.04/x
  3. Step 3: Cross multiply
    79,787.28x = 110,083.56 × 51,509.04
  4. Step 4: Simplify right side
    79,787.28x = 5,670,298,495.38
  5. Step 5: Solve for x
    x = 5,670,298,495.38/79,787.28
  6. Step 6: Final answer
    x = 71,067.70

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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.