Home / 87,208.80-120,346.61-48,968.65

Finding the Fourth Proportional to 87,208.80, 120,346.61 and 48,968.65

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Solution

The fourth proportional to 87,208.80, 120,346.61 and 48,968.65 is: 67,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,208.80 : 120,346.61 = 48,968.65 : x
  2. Step 2: Convert to fraction form
    87,208.80/120,346.61 = 48,968.65/x
  3. Step 3: Cross multiply
    87,208.80x = 120,346.61 × 48,968.65
  4. Step 4: Simplify right side
    87,208.80x = 5,893,210,661.70
  5. Step 5: Solve for x
    x = 5,893,210,661.70/87,208.80
  6. Step 6: Final answer
    x = 67,575.87

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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.