Home / 88,286.15-121,838.42-47,999.79

Finding the Fourth Proportional to 88,286.15, 121,838.42 and 47,999.79

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Solution

The fourth proportional to 88,286.15, 121,838.42 and 47,999.79 is: 66,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,286.15 : 121,838.42 = 47,999.79 : x
  2. Step 2: Convert to fraction form
    88,286.15/121,838.42 = 47,999.79/x
  3. Step 3: Cross multiply
    88,286.15x = 121,838.42 × 47,999.79
  4. Step 4: Simplify right side
    88,286.15x = 5,848,218,573.93
  5. Step 5: Solve for x
    x = 5,848,218,573.93/88,286.15
  6. Step 6: Final answer
    x = 66,241.63

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1.5x scale

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.