Home / 87,189.32-120,357.83-58,933.28

Finding the Fourth Proportional to 87,189.32, 120,357.83 and 58,933.28

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Solution

The fourth proportional to 87,189.32, 120,357.83 and 58,933.28 is: 81,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,189.32 : 120,357.83 = 58,933.28 : x
  2. Step 2: Convert to fraction form
    87,189.32/120,357.83 = 58,933.28/x
  3. Step 3: Cross multiply
    87,189.32x = 120,357.83 × 58,933.28
  4. Step 4: Simplify right side
    87,189.32x = 7,093,081,695.58
  5. Step 5: Solve for x
    x = 7,093,081,695.58/87,189.32
  6. Step 6: Final answer
    x = 81,352.64

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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.