Home / 79,077.26-109,126.17-43,266.62

Finding the Fourth Proportional to 79,077.26, 109,126.17 and 43,266.62

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Solution

The fourth proportional to 79,077.26, 109,126.17 and 43,266.62 is: 59,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.26 : 109,126.17 = 43,266.62 : x
  2. Step 2: Convert to fraction form
    79,077.26/109,126.17 = 43,266.62/x
  3. Step 3: Cross multiply
    79,077.26x = 109,126.17 × 43,266.62
  4. Step 4: Simplify right side
    79,077.26x = 4,721,520,529.45
  5. Step 5: Solve for x
    x = 4,721,520,529.45/79,077.26
  6. Step 6: Final answer
    x = 59,707.69

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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.