Home / 87,832.26-121,159.08-55,556.82

Finding the Fourth Proportional to 87,832.26, 121,159.08 and 55,556.82

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Solution

The fourth proportional to 87,832.26, 121,159.08 and 55,556.82 is: 76,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.26 : 121,159.08 = 55,556.82 : x
  2. Step 2: Convert to fraction form
    87,832.26/121,159.08 = 55,556.82/x
  3. Step 3: Cross multiply
    87,832.26x = 121,159.08 × 55,556.82
  4. Step 4: Simplify right side
    87,832.26x = 6,731,213,198.93
  5. Step 5: Solve for x
    x = 6,731,213,198.93/87,832.26
  6. Step 6: Final answer
    x = 76,637.14

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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.