Home / 54,278.20-81,482.10-30,604.60

Finding the Fourth Proportional to 54,278.20, 81,482.10 and 30,604.60

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Solution

The fourth proportional to 54,278.20, 81,482.10 and 30,604.60 is: 45,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.20 : 81,482.10 = 30,604.60 : x
  2. Step 2: Convert to fraction form
    54,278.20/81,482.10 = 30,604.60/x
  3. Step 3: Cross multiply
    54,278.20x = 81,482.10 × 30,604.60
  4. Step 4: Simplify right side
    54,278.20x = 2,493,727,077.66
  5. Step 5: Solve for x
    x = 2,493,727,077.66/54,278.20
  6. Step 6: Final answer
    x = 45,943.44

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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.