Home / 45,461.33-68,191.86-20,472.12

Finding the Fourth Proportional to 45,461.33, 68,191.86 and 20,472.12

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Solution

The fourth proportional to 45,461.33, 68,191.86 and 20,472.12 is: 30,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,461.33 : 68,191.86 = 20,472.12 : x
  2. Step 2: Convert to fraction form
    45,461.33/68,191.86 = 20,472.12/x
  3. Step 3: Cross multiply
    45,461.33x = 68,191.86 × 20,472.12
  4. Step 4: Simplify right side
    45,461.33x = 1,396,031,940.94
  5. Step 5: Solve for x
    x = 1,396,031,940.94/45,461.33
  6. Step 6: Final answer
    x = 30,708.12

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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.