Home / 78,195.10-117,479.59-50,170.20

Finding the Fourth Proportional to 78,195.10, 117,479.59 and 50,170.20

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Solution

The fourth proportional to 78,195.10, 117,479.59 and 50,170.20 is: 75,375.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,195.10 : 117,479.59 = 50,170.20 : x
  2. Step 2: Convert to fraction form
    78,195.10/117,479.59 = 50,170.20/x
  3. Step 3: Cross multiply
    78,195.10x = 117,479.59 × 50,170.20
  4. Step 4: Simplify right side
    78,195.10x = 5,893,973,938.82
  5. Step 5: Solve for x
    x = 5,893,973,938.82/78,195.10
  6. Step 6: Final answer
    x = 75,375.24

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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.