Home / 79,716.48-110,050.96-61,771.20

Finding the Fourth Proportional to 79,716.48, 110,050.96 and 61,771.20

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Solution

The fourth proportional to 79,716.48, 110,050.96 and 61,771.20 is: 85,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,716.48 : 110,050.96 = 61,771.20 : x
  2. Step 2: Convert to fraction form
    79,716.48/110,050.96 = 61,771.20/x
  3. Step 3: Cross multiply
    79,716.48x = 110,050.96 × 61,771.20
  4. Step 4: Simplify right side
    79,716.48x = 6,797,979,860.35
  5. Step 5: Solve for x
    x = 6,797,979,860.35/79,716.48
  6. Step 6: Final answer
    x = 85,276.97

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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.