Home / 50,143.46-75,215.18-20,541.09

Finding the Fourth Proportional to 50,143.46, 75,215.18 and 20,541.09

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Solution

The fourth proportional to 50,143.46, 75,215.18 and 20,541.09 is: 30,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,143.46 : 75,215.18 = 20,541.09 : x
  2. Step 2: Convert to fraction form
    50,143.46/75,215.18 = 20,541.09/x
  3. Step 3: Cross multiply
    50,143.46x = 75,215.18 × 20,541.09
  4. Step 4: Simplify right side
    50,143.46x = 1,545,002,115.16
  5. Step 5: Solve for x
    x = 1,545,002,115.16/50,143.46
  6. Step 6: Final answer
    x = 30,811.64

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Double scale
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Similar ratio
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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.