Home / 87,522.74-120,782.94-51,712.68

Finding the Fourth Proportional to 87,522.74, 120,782.94 and 51,712.68

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Solution

The fourth proportional to 87,522.74, 120,782.94 and 51,712.68 is: 71,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,522.74 : 120,782.94 = 51,712.68 : x
  2. Step 2: Convert to fraction form
    87,522.74/120,782.94 = 51,712.68/x
  3. Step 3: Cross multiply
    87,522.74x = 120,782.94 × 51,712.68
  4. Step 4: Simplify right side
    87,522.74x = 6,246,009,525.68
  5. Step 5: Solve for x
    x = 6,246,009,525.68/87,522.74
  6. Step 6: Final answer
    x = 71,364.42

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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.