Home / 87,527.88-120,716.28-55,641.24

Finding the Fourth Proportional to 87,527.88, 120,716.28 and 55,641.24

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Solution

The fourth proportional to 87,527.88, 120,716.28 and 55,641.24 is: 76,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,527.88 : 120,716.28 = 55,641.24 : x
  2. Step 2: Convert to fraction form
    87,527.88/120,716.28 = 55,641.24/x
  3. Step 3: Cross multiply
    87,527.88x = 120,716.28 × 55,641.24
  4. Step 4: Simplify right side
    87,527.88x = 6,716,803,507.39
  5. Step 5: Solve for x
    x = 6,716,803,507.39/87,527.88
  6. Step 6: Final answer
    x = 76,739.02

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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.