Home / 87,906.51-121,232.84-69,010.83

Finding the Fourth Proportional to 87,906.51, 121,232.84 and 69,010.83

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Solution

The fourth proportional to 87,906.51, 121,232.84 and 69,010.83 is: 95,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.51 : 121,232.84 = 69,010.83 : x
  2. Step 2: Convert to fraction form
    87,906.51/121,232.84 = 69,010.83/x
  3. Step 3: Cross multiply
    87,906.51x = 121,232.84 × 69,010.83
  4. Step 4: Simplify right side
    87,906.51x = 8,366,378,566.60
  5. Step 5: Solve for x
    x = 8,366,378,566.60/87,906.51
  6. Step 6: Final answer
    x = 95,173.59

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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.