Home / 57,115.24-78,815.94-31,959.88

Finding the Fourth Proportional to 57,115.24, 78,815.94 and 31,959.88

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Solution

The fourth proportional to 57,115.24, 78,815.94 and 31,959.88 is: 44,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,115.24 : 78,815.94 = 31,959.88 : x
  2. Step 2: Convert to fraction form
    57,115.24/78,815.94 = 31,959.88/x
  3. Step 3: Cross multiply
    57,115.24x = 78,815.94 × 31,959.88
  4. Step 4: Simplify right side
    57,115.24x = 2,518,947,984.49
  5. Step 5: Solve for x
    x = 2,518,947,984.49/57,115.24
  6. Step 6: Final answer
    x = 44,102.90

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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.