Home / 87,055.75-120,136.94-51,267.93

Finding the Fourth Proportional to 87,055.75, 120,136.94 and 51,267.93

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Solution

The fourth proportional to 87,055.75, 120,136.94 and 51,267.93 is: 70,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,055.75 : 120,136.94 = 51,267.93 : x
  2. Step 2: Convert to fraction form
    87,055.75/120,136.94 = 51,267.93/x
  3. Step 3: Cross multiply
    87,055.75x = 120,136.94 × 51,267.93
  4. Step 4: Simplify right side
    87,055.75x = 6,159,172,230.33
  5. Step 5: Solve for x
    x = 6,159,172,230.33/87,055.75
  6. Step 6: Final answer
    x = 70,749.75

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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.