Home / 40,729.91-61,104.43-12,648.52

Finding the Fourth Proportional to 40,729.91, 61,104.43 and 12,648.52

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Solution

The fourth proportional to 40,729.91, 61,104.43 and 12,648.52 is: 18,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.91 : 61,104.43 = 12,648.52 : x
  2. Step 2: Convert to fraction form
    40,729.91/61,104.43 = 12,648.52/x
  3. Step 3: Cross multiply
    40,729.91x = 61,104.43 × 12,648.52
  4. Step 4: Simplify right side
    40,729.91x = 772,880,604.94
  5. Step 5: Solve for x
    x = 772,880,604.94/40,729.91
  6. Step 6: Final answer
    x = 18,975.75

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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.