Home / 88,003.24-121,445.32-47,716.88

Finding the Fourth Proportional to 88,003.24, 121,445.32 and 47,716.88

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Solution

The fourth proportional to 88,003.24, 121,445.32 and 47,716.88 is: 65,849.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,003.24 : 121,445.32 = 47,716.88 : x
  2. Step 2: Convert to fraction form
    88,003.24/121,445.32 = 47,716.88/x
  3. Step 3: Cross multiply
    88,003.24x = 121,445.32 × 47,716.88
  4. Step 4: Simplify right side
    88,003.24x = 5,794,991,761.00
  5. Step 5: Solve for x
    x = 5,794,991,761.00/88,003.24
  6. Step 6: Final answer
    x = 65,849.75

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1.5x scale

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.