Home / 88,375.85-121,966.80-50,147.90

Finding the Fourth Proportional to 88,375.85, 121,966.80 and 50,147.90

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Solution

The fourth proportional to 88,375.85, 121,966.80 and 50,147.90 is: 69,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,375.85 : 121,966.80 = 50,147.90 : x
  2. Step 2: Convert to fraction form
    88,375.85/121,966.80 = 50,147.90/x
  3. Step 3: Cross multiply
    88,375.85x = 121,966.80 × 50,147.90
  4. Step 4: Simplify right side
    88,375.85x = 6,116,378,889.72
  5. Step 5: Solve for x
    x = 6,116,378,889.72/88,375.85
  6. Step 6: Final answer
    x = 69,208.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.