Home / 66,442.20-99,641.70-22,061.40

Finding the Fourth Proportional to 66,442.20, 99,641.70 and 22,061.40

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Solution

The fourth proportional to 66,442.20, 99,641.70 and 22,061.40 is: 33,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,442.20 : 99,641.70 = 22,061.40 : x
  2. Step 2: Convert to fraction form
    66,442.20/99,641.70 = 22,061.40/x
  3. Step 3: Cross multiply
    66,442.20x = 99,641.70 × 22,061.40
  4. Step 4: Simplify right side
    66,442.20x = 2,198,235,400.38
  5. Step 5: Solve for x
    x = 2,198,235,400.38/66,442.20
  6. Step 6: Final answer
    x = 33,084.93

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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.