Home / 78,389.16-117,591.53-25,067.74

Finding the Fourth Proportional to 78,389.16, 117,591.53 and 25,067.74

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Solution

The fourth proportional to 78,389.16, 117,591.53 and 25,067.74 is: 37,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389.16 : 117,591.53 = 25,067.74 : x
  2. Step 2: Convert to fraction form
    78,389.16/117,591.53 = 25,067.74/x
  3. Step 3: Cross multiply
    78,389.16x = 117,591.53 × 25,067.74
  4. Step 4: Simplify right side
    78,389.16x = 2,947,753,701.41
  5. Step 5: Solve for x
    x = 2,947,753,701.41/78,389.16
  6. Step 6: Final answer
    x = 37,604.10

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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.