Home / 87,872.27-121,263.13-47,585.11

Finding the Fourth Proportional to 87,872.27, 121,263.13 and 47,585.11

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Solution

The fourth proportional to 87,872.27, 121,263.13 and 47,585.11 is: 65,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,872.27 : 121,263.13 = 47,585.11 : x
  2. Step 2: Convert to fraction form
    87,872.27/121,263.13 = 47,585.11/x
  3. Step 3: Cross multiply
    87,872.27x = 121,263.13 × 47,585.11
  4. Step 4: Simplify right side
    87,872.27x = 5,770,319,379.99
  5. Step 5: Solve for x
    x = 5,770,319,379.99/87,872.27
  6. Step 6: Final answer
    x = 65,667.13

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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.