Home / 87,653.76-121,020.52-51,855.24

Finding the Fourth Proportional to 87,653.76, 121,020.52 and 51,855.24

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Solution

The fourth proportional to 87,653.76, 121,020.52 and 51,855.24 is: 71,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,653.76 : 121,020.52 = 51,855.24 : x
  2. Step 2: Convert to fraction form
    87,653.76/121,020.52 = 51,855.24/x
  3. Step 3: Cross multiply
    87,653.76x = 121,020.52 × 51,855.24
  4. Step 4: Simplify right side
    87,653.76x = 6,275,548,109.52
  5. Step 5: Solve for x
    x = 6,275,548,109.52/87,653.76
  6. Step 6: Final answer
    x = 71,594.74

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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.