Home / 87,587.57-120,871.76-49,864.25

Finding the Fourth Proportional to 87,587.57, 120,871.76 and 49,864.25

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Solution

The fourth proportional to 87,587.57, 120,871.76 and 49,864.25 is: 68,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,587.57 : 120,871.76 = 49,864.25 : x
  2. Step 2: Convert to fraction form
    87,587.57/120,871.76 = 49,864.25/x
  3. Step 3: Cross multiply
    87,587.57x = 120,871.76 × 49,864.25
  4. Step 4: Simplify right side
    87,587.57x = 6,027,178,804.90
  5. Step 5: Solve for x
    x = 6,027,178,804.90/87,587.57
  6. Step 6: Final answer
    x = 68,813.18

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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.