Home / 40,505.57-60,739.52-12,418.41

Finding the Fourth Proportional to 40,505.57, 60,739.52 and 12,418.41

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Solution

The fourth proportional to 40,505.57, 60,739.52 and 12,418.41 is: 18,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,505.57 : 60,739.52 = 12,418.41 : x
  2. Step 2: Convert to fraction form
    40,505.57/60,739.52 = 12,418.41/x
  3. Step 3: Cross multiply
    40,505.57x = 60,739.52 × 12,418.41
  4. Step 4: Simplify right side
    40,505.57x = 754,288,200.47
  5. Step 5: Solve for x
    x = 754,288,200.47/40,505.57
  6. Step 6: Final answer
    x = 18,621.84

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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.