Home / 55,207.16-82,812.10-20,146.82

Finding the Fourth Proportional to 55,207.16, 82,812.10 and 20,146.82

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Solution

The fourth proportional to 55,207.16, 82,812.10 and 20,146.82 is: 30,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.16 : 82,812.10 = 20,146.82 : x
  2. Step 2: Convert to fraction form
    55,207.16/82,812.10 = 20,146.82/x
  3. Step 3: Cross multiply
    55,207.16x = 82,812.10 × 20,146.82
  4. Step 4: Simplify right side
    55,207.16x = 1,668,400,472.52
  5. Step 5: Solve for x
    x = 1,668,400,472.52/55,207.16
  6. Step 6: Final answer
    x = 30,220.73

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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.