Home / 54,264.80-81,397.20-45,516.80

Finding the Fourth Proportional to 54,264.80, 81,397.20 and 45,516.80

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Solution

The fourth proportional to 54,264.80, 81,397.20 and 45,516.80 is: 68,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,264.80 : 81,397.20 = 45,516.80 : x
  2. Step 2: Convert to fraction form
    54,264.80/81,397.20 = 45,516.80/x
  3. Step 3: Cross multiply
    54,264.80x = 81,397.20 × 45,516.80
  4. Step 4: Simplify right side
    54,264.80x = 3,704,940,072.96
  5. Step 5: Solve for x
    x = 3,704,940,072.96/54,264.80
  6. Step 6: Final answer
    x = 68,275.20

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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.