Home / 68,021.28-101,842.56-51,330.72

Finding the Fourth Proportional to 68,021.28, 101,842.56 and 51,330.72

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Solution

The fourth proportional to 68,021.28, 101,842.56 and 51,330.72 is: 76,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.28 : 101,842.56 = 51,330.72 : x
  2. Step 2: Convert to fraction form
    68,021.28/101,842.56 = 51,330.72/x
  3. Step 3: Cross multiply
    68,021.28x = 101,842.56 × 51,330.72
  4. Step 4: Simplify right side
    68,021.28x = 5,227,651,931.44
  5. Step 5: Solve for x
    x = 5,227,651,931.44/68,021.28
  6. Step 6: Final answer
    x = 76,853.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.