Home / 77,512.78-116,246.06-30,135.23

Finding the Fourth Proportional to 77,512.78, 116,246.06 and 30,135.23

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Solution

The fourth proportional to 77,512.78, 116,246.06 and 30,135.23 is: 45,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,512.78 : 116,246.06 = 30,135.23 : x
  2. Step 2: Convert to fraction form
    77,512.78/116,246.06 = 30,135.23/x
  3. Step 3: Cross multiply
    77,512.78x = 116,246.06 × 30,135.23
  4. Step 4: Simplify right side
    77,512.78x = 3,503,101,754.69
  5. Step 5: Solve for x
    x = 3,503,101,754.69/77,512.78
  6. Step 6: Final answer
    x = 45,193.86

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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.