Home / 79,842.11-119,523.87-77,003.18

Finding the Fourth Proportional to 79,842.11, 119,523.87 and 77,003.18

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Solution

The fourth proportional to 79,842.11, 119,523.87 and 77,003.18 is: 115,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,842.11 : 119,523.87 = 77,003.18 : x
  2. Step 2: Convert to fraction form
    79,842.11/119,523.87 = 77,003.18/x
  3. Step 3: Cross multiply
    79,842.11x = 119,523.87 × 77,003.18
  4. Step 4: Simplify right side
    79,842.11x = 9,203,717,926.50
  5. Step 5: Solve for x
    x = 9,203,717,926.50/79,842.11
  6. Step 6: Final answer
    x = 115,273.99

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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.