Home / 77,400.86-116,101.38-21,241.73

Finding the Fourth Proportional to 77,400.86, 116,101.38 and 21,241.73

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Solution

The fourth proportional to 77,400.86, 116,101.38 and 21,241.73 is: 31,862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,400.86 : 116,101.38 = 21,241.73 : x
  2. Step 2: Convert to fraction form
    77,400.86/116,101.38 = 21,241.73/x
  3. Step 3: Cross multiply
    77,400.86x = 116,101.38 × 21,241.73
  4. Step 4: Simplify right side
    77,400.86x = 2,466,194,536.50
  5. Step 5: Solve for x
    x = 2,466,194,536.50/77,400.86
  6. Step 6: Final answer
    x = 31,862.63

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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.