Home / 54,454.50-74,913.90-52,121.70

Finding the Fourth Proportional to 54,454.50, 74,913.90 and 52,121.70

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Solution

The fourth proportional to 54,454.50, 74,913.90 and 52,121.70 is: 71,704.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,454.50 : 74,913.90 = 52,121.70 : x
  2. Step 2: Convert to fraction form
    54,454.50/74,913.90 = 52,121.70/x
  3. Step 3: Cross multiply
    54,454.50x = 74,913.90 × 52,121.70
  4. Step 4: Simplify right side
    54,454.50x = 3,904,639,821.63
  5. Step 5: Solve for x
    x = 3,904,639,821.63/54,454.50
  6. Step 6: Final answer
    x = 71,704.63

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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.