Home / 87,853.24-121,154.44-57,664.72

Finding the Fourth Proportional to 87,853.24, 121,154.44 and 57,664.72

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Solution

The fourth proportional to 87,853.24, 121,154.44 and 57,664.72 is: 79,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.24 : 121,154.44 = 57,664.72 : x
  2. Step 2: Convert to fraction form
    87,853.24/121,154.44 = 57,664.72/x
  3. Step 3: Cross multiply
    87,853.24x = 121,154.44 × 57,664.72
  4. Step 4: Simplify right side
    87,853.24x = 6,986,336,859.36
  5. Step 5: Solve for x
    x = 6,986,336,859.36/87,853.24
  6. Step 6: Final answer
    x = 79,522.81

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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.