Home / 88,991.10-122,821.50-50,750.72

Finding the Fourth Proportional to 88,991.10, 122,821.50 and 50,750.72

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Solution

The fourth proportional to 88,991.10, 122,821.50 and 50,750.72 is: 70,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,991.10 : 122,821.50 = 50,750.72 : x
  2. Step 2: Convert to fraction form
    88,991.10/122,821.50 = 50,750.72/x
  3. Step 3: Cross multiply
    88,991.10x = 122,821.50 × 50,750.72
  4. Step 4: Simplify right side
    88,991.10x = 6,233,279,556.48
  5. Step 5: Solve for x
    x = 6,233,279,556.48/88,991.10
  6. Step 6: Final answer
    x = 70,043.85

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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.