Home / 54,157.16-81,227.34-20,892.80

Finding the Fourth Proportional to 54,157.16, 81,227.34 and 20,892.80

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Solution

The fourth proportional to 54,157.16, 81,227.34 and 20,892.80 is: 31,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,157.16 : 81,227.34 = 20,892.80 : x
  2. Step 2: Convert to fraction form
    54,157.16/81,227.34 = 20,892.80/x
  3. Step 3: Cross multiply
    54,157.16x = 81,227.34 × 20,892.80
  4. Step 4: Simplify right side
    54,157.16x = 1,697,066,569.15
  5. Step 5: Solve for x
    x = 1,697,066,569.15/54,157.16
  6. Step 6: Final answer
    x = 31,335.96

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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.