Home / 51,689.92-77,350.16-40,519.80

Finding the Fourth Proportional to 51,689.92, 77,350.16 and 40,519.80

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Solution

The fourth proportional to 51,689.92, 77,350.16 and 40,519.80 is: 60,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,689.92 : 77,350.16 = 40,519.80 : x
  2. Step 2: Convert to fraction form
    51,689.92/77,350.16 = 40,519.80/x
  3. Step 3: Cross multiply
    51,689.92x = 77,350.16 × 40,519.80
  4. Step 4: Simplify right side
    51,689.92x = 3,134,213,013.17
  5. Step 5: Solve for x
    x = 3,134,213,013.17/51,689.92
  6. Step 6: Final answer
    x = 60,634.90

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1.5x scale

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.