Home / 83,235.24-124,865.30-30,640.73

Finding the Fourth Proportional to 83,235.24, 124,865.30 and 30,640.73

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Solution

The fourth proportional to 83,235.24, 124,865.30 and 30,640.73 is: 45,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,235.24 : 124,865.30 = 30,640.73 : x
  2. Step 2: Convert to fraction form
    83,235.24/124,865.30 = 30,640.73/x
  3. Step 3: Cross multiply
    83,235.24x = 124,865.30 × 30,640.73
  4. Step 4: Simplify right side
    83,235.24x = 3,825,963,943.67
  5. Step 5: Solve for x
    x = 3,825,963,943.67/83,235.24
  6. Step 6: Final answer
    x = 45,965.67

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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.