Home / 43,678.40-65,517.60-40,299.20

Finding the Fourth Proportional to 43,678.40, 65,517.60 and 40,299.20

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Solution

The fourth proportional to 43,678.40, 65,517.60 and 40,299.20 is: 60,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.40 : 65,517.60 = 40,299.20 : x
  2. Step 2: Convert to fraction form
    43,678.40/65,517.60 = 40,299.20/x
  3. Step 3: Cross multiply
    43,678.40x = 65,517.60 × 40,299.20
  4. Step 4: Simplify right side
    43,678.40x = 2,640,306,865.92
  5. Step 5: Solve for x
    x = 2,640,306,865.92/43,678.40
  6. Step 6: Final answer
    x = 60,448.80

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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.