Home / 87,874.33-121,265.94-47,587.16

Finding the Fourth Proportional to 87,874.33, 121,265.94 and 47,587.16

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Solution

The fourth proportional to 87,874.33, 121,265.94 and 47,587.16 is: 65,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.33 : 121,265.94 = 47,587.16 : x
  2. Step 2: Convert to fraction form
    87,874.33/121,265.94 = 47,587.16/x
  3. Step 3: Cross multiply
    87,874.33x = 121,265.94 × 47,587.16
  4. Step 4: Simplify right side
    87,874.33x = 5,770,700,993.77
  5. Step 5: Solve for x
    x = 5,770,700,993.77/87,874.33
  6. Step 6: Final answer
    x = 65,669.93

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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.