Home / 96,821.30-145,232.06-30,261.78

Finding the Fourth Proportional to 96,821.30, 145,232.06 and 30,261.78

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Solution

The fourth proportional to 96,821.30, 145,232.06 and 30,261.78 is: 45,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,821.30 : 145,232.06 = 30,261.78 : x
  2. Step 2: Convert to fraction form
    96,821.30/145,232.06 = 30,261.78/x
  3. Step 3: Cross multiply
    96,821.30x = 145,232.06 × 30,261.78
  4. Step 4: Simplify right side
    96,821.30x = 4,394,980,648.67
  5. Step 5: Solve for x
    x = 4,394,980,648.67/96,821.30
  6. Step 6: Final answer
    x = 45,392.70

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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.