Home / 50,170.55-75,268.28-20,186.78

Finding the Fourth Proportional to 50,170.55, 75,268.28 and 20,186.78

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Solution

The fourth proportional to 50,170.55, 75,268.28 and 20,186.78 is: 30,285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,170.55 : 75,268.28 = 20,186.78 : x
  2. Step 2: Convert to fraction form
    50,170.55/75,268.28 = 20,186.78/x
  3. Step 3: Cross multiply
    50,170.55x = 75,268.28 × 20,186.78
  4. Step 4: Simplify right side
    50,170.55x = 1,519,423,883.46
  5. Step 5: Solve for x
    x = 1,519,423,883.46/50,170.55
  6. Step 6: Final answer
    x = 30,285.18

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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.