Home / 79,789.28-110,086.32-51,511.04

Finding the Fourth Proportional to 79,789.28, 110,086.32 and 51,511.04

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Solution

The fourth proportional to 79,789.28, 110,086.32 and 51,511.04 is: 71,070.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.28 : 110,086.32 = 51,511.04 : x
  2. Step 2: Convert to fraction form
    79,789.28/110,086.32 = 51,511.04/x
  3. Step 3: Cross multiply
    79,789.28x = 110,086.32 × 51,511.04
  4. Step 4: Simplify right side
    79,789.28x = 5,670,660,832.97
  5. Step 5: Solve for x
    x = 5,670,660,832.97/79,789.28
  6. Step 6: Final answer
    x = 71,070.46

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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.