Home / 54,348.60-81,523.43-20,605.54

Finding the Fourth Proportional to 54,348.60, 81,523.43 and 20,605.54

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Solution

The fourth proportional to 54,348.60, 81,523.43 and 20,605.54 is: 30,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,348.60 : 81,523.43 = 20,605.54 : x
  2. Step 2: Convert to fraction form
    54,348.60/81,523.43 = 20,605.54/x
  3. Step 3: Cross multiply
    54,348.60x = 81,523.43 × 20,605.54
  4. Step 4: Simplify right side
    54,348.60x = 1,679,834,297.80
  5. Step 5: Solve for x
    x = 1,679,834,297.80/54,348.60
  6. Step 6: Final answer
    x = 30,908.51

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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.