Home / 66,442.38-99,680.40-22,069.36

Finding the Fourth Proportional to 66,442.38, 99,680.40 and 22,069.36

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Solution

The fourth proportional to 66,442.38, 99,680.40 and 22,069.36 is: 33,109.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,442.38 : 99,680.40 = 22,069.36 : x
  2. Step 2: Convert to fraction form
    66,442.38/99,680.40 = 22,069.36/x
  3. Step 3: Cross multiply
    66,442.38x = 99,680.40 × 22,069.36
  4. Step 4: Simplify right side
    66,442.38x = 2,199,882,632.54
  5. Step 5: Solve for x
    x = 2,199,882,632.54/66,442.38
  6. Step 6: Final answer
    x = 33,109.63

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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.