Home / 87,189.57-120,357.77-58,933.53

Finding the Fourth Proportional to 87,189.57, 120,357.77 and 58,933.53

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Solution

The fourth proportional to 87,189.57, 120,357.77 and 58,933.53 is: 81,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,189.57 : 120,357.77 = 58,933.53 : x
  2. Step 2: Convert to fraction form
    87,189.57/120,357.77 = 58,933.53/x
  3. Step 3: Cross multiply
    87,189.57x = 120,357.77 × 58,933.53
  4. Step 4: Simplify right side
    87,189.57x = 7,093,107,954.36
  5. Step 5: Solve for x
    x = 7,093,107,954.36/87,189.57
  6. Step 6: Final answer
    x = 81,352.71

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1.5x scale

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.