Home / 87,022.44-120,100.59-51,221.25

Finding the Fourth Proportional to 87,022.44, 120,100.59 and 51,221.25

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Solution

The fourth proportional to 87,022.44, 120,100.59 and 51,221.25 is: 70,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,022.44 : 120,100.59 = 51,221.25 : x
  2. Step 2: Convert to fraction form
    87,022.44/120,100.59 = 51,221.25/x
  3. Step 3: Cross multiply
    87,022.44x = 120,100.59 × 51,221.25
  4. Step 4: Simplify right side
    87,022.44x = 6,151,702,345.54
  5. Step 5: Solve for x
    x = 6,151,702,345.54/87,022.44
  6. Step 6: Final answer
    x = 70,690.99

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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.