Home / 87,200.13-120,372.75-58,944.09

Finding the Fourth Proportional to 87,200.13, 120,372.75 and 58,944.09

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Solution

The fourth proportional to 87,200.13, 120,372.75 and 58,944.09 is: 81,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,200.13 : 120,372.75 = 58,944.09 : x
  2. Step 2: Convert to fraction form
    87,200.13/120,372.75 = 58,944.09/x
  3. Step 3: Cross multiply
    87,200.13x = 120,372.75 × 58,944.09
  4. Step 4: Simplify right side
    87,200.13x = 7,095,262,209.55
  5. Step 5: Solve for x
    x = 7,095,262,209.55/87,200.13
  6. Step 6: Final answer
    x = 81,367.56

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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.