Home / 40,209.20-60,378.60-30,359.60

Finding the Fourth Proportional to 40,209.20, 60,378.60 and 30,359.60

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Solution

The fourth proportional to 40,209.20, 60,378.60 and 30,359.60 is: 45,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,209.20 : 60,378.60 = 30,359.60 : x
  2. Step 2: Convert to fraction form
    40,209.20/60,378.60 = 30,359.60/x
  3. Step 3: Cross multiply
    40,209.20x = 60,378.60 × 30,359.60
  4. Step 4: Simplify right side
    40,209.20x = 1,833,070,144.56
  5. Step 5: Solve for x
    x = 1,833,070,144.56/40,209.20
  6. Step 6: Final answer
    x = 45,588.33

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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.