Home / 88,921.32-122,676.36-54,870.48

Finding the Fourth Proportional to 88,921.32, 122,676.36 and 54,870.48

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Solution

The fourth proportional to 88,921.32, 122,676.36 and 54,870.48 is: 75,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,921.32 : 122,676.36 = 54,870.48 : x
  2. Step 2: Convert to fraction form
    88,921.32/122,676.36 = 54,870.48/x
  3. Step 3: Cross multiply
    88,921.32x = 122,676.36 × 54,870.48
  4. Step 4: Simplify right side
    88,921.32x = 6,731,310,757.85
  5. Step 5: Solve for x
    x = 6,731,310,757.85/88,921.32
  6. Step 6: Final answer
    x = 75,699.63

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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.