Home / 55,172.06-82,799.67-40,418.78

Finding the Fourth Proportional to 55,172.06, 82,799.67 and 40,418.78

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Solution

The fourth proportional to 55,172.06, 82,799.67 and 40,418.78 is: 60,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.06 : 82,799.67 = 40,418.78 : x
  2. Step 2: Convert to fraction form
    55,172.06/82,799.67 = 40,418.78/x
  3. Step 3: Cross multiply
    55,172.06x = 82,799.67 × 40,418.78
  4. Step 4: Simplify right side
    55,172.06x = 3,346,661,645.80
  5. Step 5: Solve for x
    x = 3,346,661,645.80/55,172.06
  6. Step 6: Final answer
    x = 60,658.63

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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.