Home / 87,537.72-120,789.90-49,290.84

Finding the Fourth Proportional to 87,537.72, 120,789.90 and 49,290.84

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Solution

The fourth proportional to 87,537.72, 120,789.90 and 49,290.84 is: 68,014.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,537.72 : 120,789.90 = 49,290.84 : x
  2. Step 2: Convert to fraction form
    87,537.72/120,789.90 = 49,290.84/x
  3. Step 3: Cross multiply
    87,537.72x = 120,789.90 × 49,290.84
  4. Step 4: Simplify right side
    87,537.72x = 5,953,835,634.52
  5. Step 5: Solve for x
    x = 5,953,835,634.52/87,537.72
  6. Step 6: Final answer
    x = 68,014.52

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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.