Home / 87,719.24-120,957.26-55,847.36

Finding the Fourth Proportional to 87,719.24, 120,957.26 and 55,847.36

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Solution

The fourth proportional to 87,719.24, 120,957.26 and 55,847.36 is: 77,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.24 : 120,957.26 = 55,847.36 : x
  2. Step 2: Convert to fraction form
    87,719.24/120,957.26 = 55,847.36/x
  3. Step 3: Cross multiply
    87,719.24x = 120,957.26 × 55,847.36
  4. Step 4: Simplify right side
    87,719.24x = 6,755,143,643.83
  5. Step 5: Solve for x
    x = 6,755,143,643.83/87,719.24
  6. Step 6: Final answer
    x = 77,008.69

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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.