Home / 87,616.51-120,910.67-49,890.76

Finding the Fourth Proportional to 87,616.51, 120,910.67 and 49,890.76

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Solution

The fourth proportional to 87,616.51, 120,910.67 and 49,890.76 is: 68,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.51 : 120,910.67 = 49,890.76 : x
  2. Step 2: Convert to fraction form
    87,616.51/120,910.67 = 49,890.76/x
  3. Step 3: Cross multiply
    87,616.51x = 120,910.67 × 49,890.76
  4. Step 4: Simplify right side
    87,616.51x = 6,032,324,968.96
  5. Step 5: Solve for x
    x = 6,032,324,968.96/87,616.51
  6. Step 6: Final answer
    x = 68,849.18

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1.5x scale

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.