Home / 74,758.20-111,986.10-46,591.80

Finding the Fourth Proportional to 74,758.20, 111,986.10 and 46,591.80

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Solution

The fourth proportional to 74,758.20, 111,986.10 and 46,591.80 is: 69,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,758.20 : 111,986.10 = 46,591.80 : x
  2. Step 2: Convert to fraction form
    74,758.20/111,986.10 = 46,591.80/x
  3. Step 3: Cross multiply
    74,758.20x = 111,986.10 × 46,591.80
  4. Step 4: Simplify right side
    74,758.20x = 5,217,633,973.98
  5. Step 5: Solve for x
    x = 5,217,633,973.98/74,758.20
  6. Step 6: Final answer
    x = 69,793.47

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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.