Home / 78,373.28-117,544.20-38,375.03

Finding the Fourth Proportional to 78,373.28, 117,544.20 and 38,375.03

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Solution

The fourth proportional to 78,373.28, 117,544.20 and 38,375.03 is: 57,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,373.28 : 117,544.20 = 38,375.03 : x
  2. Step 2: Convert to fraction form
    78,373.28/117,544.20 = 38,375.03/x
  3. Step 3: Cross multiply
    78,373.28x = 117,544.20 × 38,375.03
  4. Step 4: Simplify right side
    78,373.28x = 4,510,762,201.33
  5. Step 5: Solve for x
    x = 4,510,762,201.33/78,373.28
  6. Step 6: Final answer
    x = 57,554.85

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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.