Home / 40,240.72-60,352.16-12,159.60

Finding the Fourth Proportional to 40,240.72, 60,352.16 and 12,159.60

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Solution

The fourth proportional to 40,240.72, 60,352.16 and 12,159.60 is: 18,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,240.72 : 60,352.16 = 12,159.60 : x
  2. Step 2: Convert to fraction form
    40,240.72/60,352.16 = 12,159.60/x
  3. Step 3: Cross multiply
    40,240.72x = 60,352.16 × 12,159.60
  4. Step 4: Simplify right side
    40,240.72x = 733,858,124.74
  5. Step 5: Solve for x
    x = 733,858,124.74/40,240.72
  6. Step 6: Final answer
    x = 18,236.70

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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.