Home / 52,002.20-78,080.10-40,328.60

Finding the Fourth Proportional to 52,002.20, 78,080.10 and 40,328.60

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Solution

The fourth proportional to 52,002.20, 78,080.10 and 40,328.60 is: 60,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,002.20 : 78,080.10 = 40,328.60 : x
  2. Step 2: Convert to fraction form
    52,002.20/78,080.10 = 40,328.60/x
  3. Step 3: Cross multiply
    52,002.20x = 78,080.10 × 40,328.60
  4. Step 4: Simplify right side
    52,002.20x = 3,148,861,120.86
  5. Step 5: Solve for x
    x = 3,148,861,120.86/52,002.20
  6. Step 6: Final answer
    x = 60,552.46

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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.