Home / 78,727.17-108,682.28-54,546.47

Finding the Fourth Proportional to 78,727.17, 108,682.28 and 54,546.47

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Solution

The fourth proportional to 78,727.17, 108,682.28 and 54,546.47 is: 75,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,727.17 : 108,682.28 = 54,546.47 : x
  2. Step 2: Convert to fraction form
    78,727.17/108,682.28 = 54,546.47/x
  3. Step 3: Cross multiply
    78,727.17x = 108,682.28 × 54,546.47
  4. Step 4: Simplify right side
    78,727.17x = 5,928,235,133.62
  5. Step 5: Solve for x
    x = 5,928,235,133.62/78,727.17
  6. Step 6: Final answer
    x = 75,301.01

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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.