Home / 50,206.55-69,357.13-40,121.78

Finding the Fourth Proportional to 50,206.55, 69,357.13 and 40,121.78

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Solution

The fourth proportional to 50,206.55, 69,357.13 and 40,121.78 is: 55,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,206.55 : 69,357.13 = 40,121.78 : x
  2. Step 2: Convert to fraction form
    50,206.55/69,357.13 = 40,121.78/x
  3. Step 3: Cross multiply
    50,206.55x = 69,357.13 × 40,121.78
  4. Step 4: Simplify right side
    50,206.55x = 2,782,731,064.20
  5. Step 5: Solve for x
    x = 2,782,731,064.20/50,206.55
  6. Step 6: Final answer
    x = 55,425.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.