Home / 78,546.38-117,841.53-25,992.86

Finding the Fourth Proportional to 78,546.38, 117,841.53 and 25,992.86

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Solution

The fourth proportional to 78,546.38, 117,841.53 and 25,992.86 is: 38,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.38 : 117,841.53 = 25,992.86 : x
  2. Step 2: Convert to fraction form
    78,546.38/117,841.53 = 25,992.86/x
  3. Step 3: Cross multiply
    78,546.38x = 117,841.53 × 25,992.86
  4. Step 4: Simplify right side
    78,546.38x = 3,063,038,391.48
  5. Step 5: Solve for x
    x = 3,063,038,391.48/78,546.38
  6. Step 6: Final answer
    x = 38,996.56

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1.5x scale

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.