Home / 68,073.30-102,034.28-51,379.20

Finding the Fourth Proportional to 68,073.30, 102,034.28 and 51,379.20

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Solution

The fourth proportional to 68,073.30, 102,034.28 and 51,379.20 is: 77,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,073.30 : 102,034.28 = 51,379.20 : x
  2. Step 2: Convert to fraction form
    68,073.30/102,034.28 = 51,379.20/x
  3. Step 3: Cross multiply
    68,073.30x = 102,034.28 × 51,379.20
  4. Step 4: Simplify right side
    68,073.30x = 5,242,439,678.98
  5. Step 5: Solve for x
    x = 5,242,439,678.98/68,073.30
  6. Step 6: Final answer
    x = 77,011.69

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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.