Home / 49,793.20-74,689.80-31,361.20

Finding the Fourth Proportional to 49,793.20, 74,689.80 and 31,361.20

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Solution

The fourth proportional to 49,793.20, 74,689.80 and 31,361.20 is: 47,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,793.20 : 74,689.80 = 31,361.20 : x
  2. Step 2: Convert to fraction form
    49,793.20/74,689.80 = 31,361.20/x
  3. Step 3: Cross multiply
    49,793.20x = 74,689.80 × 31,361.20
  4. Step 4: Simplify right side
    49,793.20x = 2,342,361,755.76
  5. Step 5: Solve for x
    x = 2,342,361,755.76/49,793.20
  6. Step 6: Final answer
    x = 47,041.80

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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.