Home / 78,286.30-117,438.59-24,959.68

Finding the Fourth Proportional to 78,286.30, 117,438.59 and 24,959.68

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Solution

The fourth proportional to 78,286.30, 117,438.59 and 24,959.68 is: 37,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286.30 : 117,438.59 = 24,959.68 : x
  2. Step 2: Convert to fraction form
    78,286.30/117,438.59 = 24,959.68/x
  3. Step 3: Cross multiply
    78,286.30x = 117,438.59 × 24,959.68
  4. Step 4: Simplify right side
    78,286.30x = 2,931,229,394.85
  5. Step 5: Solve for x
    x = 2,931,229,394.85/78,286.30
  6. Step 6: Final answer
    x = 37,442.43

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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.