Home / 88,209.54-121,729.38-47,922.96

Finding the Fourth Proportional to 88,209.54, 121,729.38 and 47,922.96

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Solution

The fourth proportional to 88,209.54, 121,729.38 and 47,922.96 is: 66,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,209.54 : 121,729.38 = 47,922.96 : x
  2. Step 2: Convert to fraction form
    88,209.54/121,729.38 = 47,922.96/x
  3. Step 3: Cross multiply
    88,209.54x = 121,729.38 × 47,922.96
  4. Step 4: Simplify right side
    88,209.54x = 5,833,632,208.56
  5. Step 5: Solve for x
    x = 5,833,632,208.56/88,209.54
  6. Step 6: Final answer
    x = 66,133.80

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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.