Home / 54,220.80-81,331.20-45,667.20

Finding the Fourth Proportional to 54,220.80, 81,331.20 and 45,667.20

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Solution

The fourth proportional to 54,220.80, 81,331.20 and 45,667.20 is: 68,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,220.80 : 81,331.20 = 45,667.20 : x
  2. Step 2: Convert to fraction form
    54,220.80/81,331.20 = 45,667.20/x
  3. Step 3: Cross multiply
    54,220.80x = 81,331.20 × 45,667.20
  4. Step 4: Simplify right side
    54,220.80x = 3,714,168,176.64
  5. Step 5: Solve for x
    x = 3,714,168,176.64/54,220.80
  6. Step 6: Final answer
    x = 68,500.80

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Similar ratio
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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.