Home / 79,739.22-109,991.45-47,452.18

Finding the Fourth Proportional to 79,739.22, 109,991.45 and 47,452.18

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Solution

The fourth proportional to 79,739.22, 109,991.45 and 47,452.18 is: 65,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,739.22 : 109,991.45 = 47,452.18 : x
  2. Step 2: Convert to fraction form
    79,739.22/109,991.45 = 47,452.18/x
  3. Step 3: Cross multiply
    79,739.22x = 109,991.45 × 47,452.18
  4. Step 4: Simplify right side
    79,739.22x = 5,219,333,610.56
  5. Step 5: Solve for x
    x = 5,219,333,610.56/79,739.22
  6. Step 6: Final answer
    x = 65,455.04

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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.