Home / 45,160.90-67,760.91-18,871.54

Finding the Fourth Proportional to 45,160.90, 67,760.91 and 18,871.54

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Solution

The fourth proportional to 45,160.90, 67,760.91 and 18,871.54 is: 28,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,160.90 : 67,760.91 = 18,871.54 : x
  2. Step 2: Convert to fraction form
    45,160.90/67,760.91 = 18,871.54/x
  3. Step 3: Cross multiply
    45,160.90x = 67,760.91 × 18,871.54
  4. Step 4: Simplify right side
    45,160.90x = 1,278,752,723.50
  5. Step 5: Solve for x
    x = 1,278,752,723.50/45,160.90
  6. Step 6: Final answer
    x = 28,315.48

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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.