Home / 88,075.11-132,112.20-21,515.61

Finding the Fourth Proportional to 88,075.11, 132,112.20 and 21,515.61

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Solution

The fourth proportional to 88,075.11, 132,112.20 and 21,515.61 is: 32,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,075.11 : 132,112.20 = 21,515.61 : x
  2. Step 2: Convert to fraction form
    88,075.11/132,112.20 = 21,515.61/x
  3. Step 3: Cross multiply
    88,075.11x = 132,112.20 × 21,515.61
  4. Step 4: Simplify right side
    88,075.11x = 2,842,474,571.44
  5. Step 5: Solve for x
    x = 2,842,474,571.44/88,075.11
  6. Step 6: Final answer
    x = 32,273.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.