Home / 45,135.81-67,712.04-15,147.09

Finding the Fourth Proportional to 45,135.81, 67,712.04 and 15,147.09

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Solution

The fourth proportional to 45,135.81, 67,712.04 and 15,147.09 is: 22,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,135.81 : 67,712.04 = 15,147.09 : x
  2. Step 2: Convert to fraction form
    45,135.81/67,712.04 = 15,147.09/x
  3. Step 3: Cross multiply
    45,135.81x = 67,712.04 × 15,147.09
  4. Step 4: Simplify right side
    45,135.81x = 1,025,640,363.96
  5. Step 5: Solve for x
    x = 1,025,640,363.96/45,135.81
  6. Step 6: Final answer
    x = 22,723.43

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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.