Home / 88,057.20-121,517.60-47,771.04

Finding the Fourth Proportional to 88,057.20, 121,517.60 and 47,771.04

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Solution

The fourth proportional to 88,057.20, 121,517.60 and 47,771.04 is: 65,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,057.20 : 121,517.60 = 47,771.04 : x
  2. Step 2: Convert to fraction form
    88,057.20/121,517.60 = 47,771.04/x
  3. Step 3: Cross multiply
    88,057.20x = 121,517.60 × 47,771.04
  4. Step 4: Simplify right side
    88,057.20x = 5,805,022,130.30
  5. Step 5: Solve for x
    x = 5,805,022,130.30/88,057.20
  6. Step 6: Final answer
    x = 65,923.31

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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.