Home / 75,419.18-113,143.36-28,668.41

Finding the Fourth Proportional to 75,419.18, 113,143.36 and 28,668.41

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Solution

The fourth proportional to 75,419.18, 113,143.36 and 28,668.41 is: 43,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,419.18 : 113,143.36 = 28,668.41 : x
  2. Step 2: Convert to fraction form
    75,419.18/113,143.36 = 28,668.41/x
  3. Step 3: Cross multiply
    75,419.18x = 113,143.36 × 28,668.41
  4. Step 4: Simplify right side
    75,419.18x = 3,243,640,233.26
  5. Step 5: Solve for x
    x = 3,243,640,233.26/75,419.18
  6. Step 6: Final answer
    x = 43,008.16

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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.