Home / 68,727.52-94,842.78-38,512.72

Finding the Fourth Proportional to 68,727.52, 94,842.78 and 38,512.72

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Solution

The fourth proportional to 68,727.52, 94,842.78 and 38,512.72 is: 53,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,727.52 : 94,842.78 = 38,512.72 : x
  2. Step 2: Convert to fraction form
    68,727.52/94,842.78 = 38,512.72/x
  3. Step 3: Cross multiply
    68,727.52x = 94,842.78 × 38,512.72
  4. Step 4: Simplify right side
    68,727.52x = 3,652,653,430.16
  5. Step 5: Solve for x
    x = 3,652,653,430.16/68,727.52
  6. Step 6: Final answer
    x = 53,146.88

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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.