Home / 66,821.04-100,200.28-38,749.04

Finding the Fourth Proportional to 66,821.04, 100,200.28 and 38,749.04

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Solution

The fourth proportional to 66,821.04, 100,200.28 and 38,749.04 is: 58,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.04 : 100,200.28 = 38,749.04 : x
  2. Step 2: Convert to fraction form
    66,821.04/100,200.28 = 38,749.04/x
  3. Step 3: Cross multiply
    66,821.04x = 100,200.28 × 38,749.04
  4. Step 4: Simplify right side
    66,821.04x = 3,882,664,657.73
  5. Step 5: Solve for x
    x = 3,882,664,657.73/66,821.04
  6. Step 6: Final answer
    x = 58,105.42

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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.