Home / 75,419.20-113,143.36-28,668.44

Finding the Fourth Proportional to 75,419.20, 113,143.36 and 28,668.44

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Solution

The fourth proportional to 75,419.20, 113,143.36 and 28,668.44 is: 43,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,419.20 : 113,143.36 = 28,668.44 : x
  2. Step 2: Convert to fraction form
    75,419.20/113,143.36 = 28,668.44/x
  3. Step 3: Cross multiply
    75,419.20x = 113,143.36 × 28,668.44
  4. Step 4: Simplify right side
    75,419.20x = 3,243,643,627.56
  5. Step 5: Solve for x
    x = 3,243,643,627.56/75,419.20
  6. Step 6: Final answer
    x = 43,008.19

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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.