Home / 96,820.30-145,230.56-30,260.78

Finding the Fourth Proportional to 96,820.30, 145,230.56 and 30,260.78

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Solution

The fourth proportional to 96,820.30, 145,230.56 and 30,260.78 is: 45,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,820.30 : 145,230.56 = 30,260.78 : x
  2. Step 2: Convert to fraction form
    96,820.30/145,230.56 = 30,260.78/x
  3. Step 3: Cross multiply
    96,820.30x = 145,230.56 × 30,260.78
  4. Step 4: Simplify right side
    96,820.30x = 4,394,790,025.44
  5. Step 5: Solve for x
    x = 4,394,790,025.44/96,820.30
  6. Step 6: Final answer
    x = 45,391.20

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1.5x scale

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.