Home / 79,815.36-110,157.12-47,998.56

Finding the Fourth Proportional to 79,815.36, 110,157.12 and 47,998.56

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Solution

The fourth proportional to 79,815.36, 110,157.12 and 47,998.56 is: 66,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815.36 : 110,157.12 = 47,998.56 : x
  2. Step 2: Convert to fraction form
    79,815.36/110,157.12 = 47,998.56/x
  3. Step 3: Cross multiply
    79,815.36x = 110,157.12 × 47,998.56
  4. Step 4: Simplify right side
    79,815.36x = 5,287,383,133.75
  5. Step 5: Solve for x
    x = 5,287,383,133.75/79,815.36
  6. Step 6: Final answer
    x = 66,245.18

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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.