Home / 62,760.45-94,120.68-20,630.78

Finding the Fourth Proportional to 62,760.45, 94,120.68 and 20,630.78

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Solution

The fourth proportional to 62,760.45, 94,120.68 and 20,630.78 is: 30,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,760.45 : 94,120.68 = 20,630.78 : x
  2. Step 2: Convert to fraction form
    62,760.45/94,120.68 = 20,630.78/x
  3. Step 3: Cross multiply
    62,760.45x = 94,120.68 × 20,630.78
  4. Step 4: Simplify right side
    62,760.45x = 1,941,783,531.67
  5. Step 5: Solve for x
    x = 1,941,783,531.67/62,760.45
  6. Step 6: Final answer
    x = 30,939.60

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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.