Home / 87,537.03-120,801.54-49,811.28

Finding the Fourth Proportional to 87,537.03, 120,801.54 and 49,811.28

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Solution

The fourth proportional to 87,537.03, 120,801.54 and 49,811.28 is: 68,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,537.03 : 120,801.54 = 49,811.28 : x
  2. Step 2: Convert to fraction form
    87,537.03/120,801.54 = 49,811.28/x
  3. Step 3: Cross multiply
    87,537.03x = 120,801.54 × 49,811.28
  4. Step 4: Simplify right side
    87,537.03x = 6,017,279,333.37
  5. Step 5: Solve for x
    x = 6,017,279,333.37/87,537.03
  6. Step 6: Final answer
    x = 68,739.82

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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.