Home / 81,706.72-122,441.28-44,235.04

Finding the Fourth Proportional to 81,706.72, 122,441.28 and 44,235.04

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Solution

The fourth proportional to 81,706.72, 122,441.28 and 44,235.04 is: 66,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,706.72 : 122,441.28 = 44,235.04 : x
  2. Step 2: Convert to fraction form
    81,706.72/122,441.28 = 44,235.04/x
  3. Step 3: Cross multiply
    81,706.72x = 122,441.28 × 44,235.04
  4. Step 4: Simplify right side
    81,706.72x = 5,416,194,918.45
  5. Step 5: Solve for x
    x = 5,416,194,918.45/81,706.72
  6. Step 6: Final answer
    x = 66,288.24

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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.