Home / 81,768.20-122,666.88-22,602.56

Finding the Fourth Proportional to 81,768.20, 122,666.88 and 22,602.56

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Solution

The fourth proportional to 81,768.20, 122,666.88 and 22,602.56 is: 33,907.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,768.20 : 122,666.88 = 22,602.56 : x
  2. Step 2: Convert to fraction form
    81,768.20/122,666.88 = 22,602.56/x
  3. Step 3: Cross multiply
    81,768.20x = 122,666.88 × 22,602.56
  4. Step 4: Simplify right side
    81,768.20x = 2,772,585,515.21
  5. Step 5: Solve for x
    x = 2,772,585,515.21/81,768.20
  6. Step 6: Final answer
    x = 33,907.87

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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.