Home / 77,403.33-116,107.22-21,243.90

Finding the Fourth Proportional to 77,403.33, 116,107.22 and 21,243.90

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Solution

The fourth proportional to 77,403.33, 116,107.22 and 21,243.90 is: 31,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,403.33 : 116,107.22 = 21,243.90 : x
  2. Step 2: Convert to fraction form
    77,403.33/116,107.22 = 21,243.90/x
  3. Step 3: Cross multiply
    77,403.33x = 116,107.22 × 21,243.90
  4. Step 4: Simplify right side
    77,403.33x = 2,466,570,170.96
  5. Step 5: Solve for x
    x = 2,466,570,170.96/77,403.33
  6. Step 6: Final answer
    x = 31,866.46

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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.