Home / 77,791.10-116,643.45-30,991.10

Finding the Fourth Proportional to 77,791.10, 116,643.45 and 30,991.10

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Solution

The fourth proportional to 77,791.10, 116,643.45 and 30,991.10 is: 46,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,791.10 : 116,643.45 = 30,991.10 : x
  2. Step 2: Convert to fraction form
    77,791.10/116,643.45 = 30,991.10/x
  3. Step 3: Cross multiply
    77,791.10x = 116,643.45 × 30,991.10
  4. Step 4: Simplify right side
    77,791.10x = 3,614,908,823.30
  5. Step 5: Solve for x
    x = 3,614,908,823.30/77,791.10
  6. Step 6: Final answer
    x = 46,469.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.