Home / 78,468.28-117,544.82-36,289.24

Finding the Fourth Proportional to 78,468.28, 117,544.82 and 36,289.24

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Solution

The fourth proportional to 78,468.28, 117,544.82 and 36,289.24 is: 54,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,468.28 : 117,544.82 = 36,289.24 : x
  2. Step 2: Convert to fraction form
    78,468.28/117,544.82 = 36,289.24/x
  3. Step 3: Cross multiply
    78,468.28x = 117,544.82 × 36,289.24
  4. Step 4: Simplify right side
    78,468.28x = 4,265,612,183.74
  5. Step 5: Solve for x
    x = 4,265,612,183.74/78,468.28
  6. Step 6: Final answer
    x = 54,360.97

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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.