Home / 81,194.24-121,827.72-51,604.40

Finding the Fourth Proportional to 81,194.24, 121,827.72 and 51,604.40

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Solution

The fourth proportional to 81,194.24, 121,827.72 and 51,604.40 is: 77,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,194.24 : 121,827.72 = 51,604.40 : x
  2. Step 2: Convert to fraction form
    81,194.24/121,827.72 = 51,604.40/x
  3. Step 3: Cross multiply
    81,194.24x = 121,827.72 × 51,604.40
  4. Step 4: Simplify right side
    81,194.24x = 6,286,846,393.97
  5. Step 5: Solve for x
    x = 6,286,846,393.97/81,194.24
  6. Step 6: Final answer
    x = 77,429.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.