Home / 87,995.56-121,401.99-57,797.26

Finding the Fourth Proportional to 87,995.56, 121,401.99 and 57,797.26

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Solution

The fourth proportional to 87,995.56, 121,401.99 and 57,797.26 is: 79,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.56 : 121,401.99 = 57,797.26 : x
  2. Step 2: Convert to fraction form
    87,995.56/121,401.99 = 57,797.26/x
  3. Step 3: Cross multiply
    87,995.56x = 121,401.99 × 57,797.26
  4. Step 4: Simplify right side
    87,995.56x = 7,016,702,380.55
  5. Step 5: Solve for x
    x = 7,016,702,380.55/87,995.56
  6. Step 6: Final answer
    x = 79,739.28

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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.