Home / 84,653.12-126,868.26-47,230.80

Finding the Fourth Proportional to 84,653.12, 126,868.26 and 47,230.80

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Solution

The fourth proportional to 84,653.12, 126,868.26 and 47,230.80 is: 70,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,653.12 : 126,868.26 = 47,230.80 : x
  2. Step 2: Convert to fraction form
    84,653.12/126,868.26 = 47,230.80/x
  3. Step 3: Cross multiply
    84,653.12x = 126,868.26 × 47,230.80
  4. Step 4: Simplify right side
    84,653.12x = 5,992,089,414.41
  5. Step 5: Solve for x
    x = 5,992,089,414.41/84,653.12
  6. Step 6: Final answer
    x = 70,784.04

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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.