Home / 75,129.24-103,679.82-43,292.76

Finding the Fourth Proportional to 75,129.24, 103,679.82 and 43,292.76

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Solution

The fourth proportional to 75,129.24, 103,679.82 and 43,292.76 is: 59,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.24 : 103,679.82 = 43,292.76 : x
  2. Step 2: Convert to fraction form
    75,129.24/103,679.82 = 43,292.76/x
  3. Step 3: Cross multiply
    75,129.24x = 103,679.82 × 43,292.76
  4. Step 4: Simplify right side
    75,129.24x = 4,488,585,564.10
  5. Step 5: Solve for x
    x = 4,488,585,564.10/75,129.24
  6. Step 6: Final answer
    x = 59,744.86

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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.