Home / 78,394.29-117,599.21-25,072.87

Finding the Fourth Proportional to 78,394.29, 117,599.21 and 25,072.87

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Solution

The fourth proportional to 78,394.29, 117,599.21 and 25,072.87 is: 37,611.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,394.29 : 117,599.21 = 25,072.87 : x
  2. Step 2: Convert to fraction form
    78,394.29/117,599.21 = 25,072.87/x
  3. Step 3: Cross multiply
    78,394.29x = 117,599.21 × 25,072.87
  4. Step 4: Simplify right side
    78,394.29x = 2,948,549,704.43
  5. Step 5: Solve for x
    x = 2,948,549,704.43/78,394.29
  6. Step 6: Final answer
    x = 37,611.79

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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.