Home / 45,120.32-67,747-25,168.79

Finding the Fourth Proportional to 45,120.32, 67,747 and 25,168.79

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Solution

The fourth proportional to 45,120.32, 67,747 and 25,168.79 is: 37,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.32 : 67,747 = 25,168.79 : x
  2. Step 2: Convert to fraction form
    45,120.32/67,747 = 25,168.79/x
  3. Step 3: Cross multiply
    45,120.32x = 67,747 × 25,168.79
  4. Step 4: Simplify right side
    45,120.32x = 1,705,110,016.13
  5. Step 5: Solve for x
    x = 1,705,110,016.13/45,120.32
  6. Step 6: Final answer
    x = 37,790.29

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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.