Home / 54,274.20-81,497.70-36,821.40

Finding the Fourth Proportional to 54,274.20, 81,497.70 and 36,821.40

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Solution

The fourth proportional to 54,274.20, 81,497.70 and 36,821.40 is: 55,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,274.20 : 81,497.70 = 36,821.40 : x
  2. Step 2: Convert to fraction form
    54,274.20/81,497.70 = 36,821.40/x
  3. Step 3: Cross multiply
    54,274.20x = 81,497.70 × 36,821.40
  4. Step 4: Simplify right side
    54,274.20x = 3,000,859,410.78
  5. Step 5: Solve for x
    x = 3,000,859,410.78/54,274.20
  6. Step 6: Final answer
    x = 55,290.72

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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.