Home / 84,079.76-115,964.42-53,867.88

Finding the Fourth Proportional to 84,079.76, 115,964.42 and 53,867.88

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Solution

The fourth proportional to 84,079.76, 115,964.42 and 53,867.88 is: 74,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,079.76 : 115,964.42 = 53,867.88 : x
  2. Step 2: Convert to fraction form
    84,079.76/115,964.42 = 53,867.88/x
  3. Step 3: Cross multiply
    84,079.76x = 115,964.42 × 53,867.88
  4. Step 4: Simplify right side
    84,079.76x = 6,246,757,191.49
  5. Step 5: Solve for x
    x = 6,246,757,191.49/84,079.76
  6. Step 6: Final answer
    x = 74,295.62

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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.