Home / 87,956.52-121,379.51-47,669.85

Finding the Fourth Proportional to 87,956.52, 121,379.51 and 47,669.85

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Solution

The fourth proportional to 87,956.52, 121,379.51 and 47,669.85 is: 65,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,956.52 : 121,379.51 = 47,669.85 : x
  2. Step 2: Convert to fraction form
    87,956.52/121,379.51 = 47,669.85/x
  3. Step 3: Cross multiply
    87,956.52x = 121,379.51 × 47,669.85
  4. Step 4: Simplify right side
    87,956.52x = 5,786,143,153.95
  5. Step 5: Solve for x
    x = 5,786,143,153.95/87,956.52
  6. Step 6: Final answer
    x = 65,784.13

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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.