Home / 55,253.88-76,250.16-31,375.80

Finding the Fourth Proportional to 55,253.88, 76,250.16 and 31,375.80

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Solution

The fourth proportional to 55,253.88, 76,250.16 and 31,375.80 is: 43,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,253.88 : 76,250.16 = 31,375.80 : x
  2. Step 2: Convert to fraction form
    55,253.88/76,250.16 = 31,375.80/x
  3. Step 3: Cross multiply
    55,253.88x = 76,250.16 × 31,375.80
  4. Step 4: Simplify right side
    55,253.88x = 2,392,409,770.13
  5. Step 5: Solve for x
    x = 2,392,409,770.13/55,253.88
  6. Step 6: Final answer
    x = 43,298.49

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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.