Home / 78,733.96-108,653.21-50,456.05

Finding the Fourth Proportional to 78,733.96, 108,653.21 and 50,456.05

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Solution

The fourth proportional to 78,733.96, 108,653.21 and 50,456.05 is: 69,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.96 : 108,653.21 = 50,456.05 : x
  2. Step 2: Convert to fraction form
    78,733.96/108,653.21 = 50,456.05/x
  3. Step 3: Cross multiply
    78,733.96x = 108,653.21 × 50,456.05
  4. Step 4: Simplify right side
    78,733.96x = 5,482,211,796.42
  5. Step 5: Solve for x
    x = 5,482,211,796.42/78,733.96
  6. Step 6: Final answer
    x = 69,629.57

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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.