Home / 54,343.20-74,997.20-30,471.40

Finding the Fourth Proportional to 54,343.20, 74,997.20 and 30,471.40

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Solution

The fourth proportional to 54,343.20, 74,997.20 and 30,471.40 is: 42,052.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,343.20 : 74,997.20 = 30,471.40 : x
  2. Step 2: Convert to fraction form
    54,343.20/74,997.20 = 30,471.40/x
  3. Step 3: Cross multiply
    54,343.20x = 74,997.20 × 30,471.40
  4. Step 4: Simplify right side
    54,343.20x = 2,285,269,680.08
  5. Step 5: Solve for x
    x = 2,285,269,680.08/54,343.20
  6. Step 6: Final answer
    x = 42,052.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.