Home / 43,648.20-65,472.30-31,984.20

Finding the Fourth Proportional to 43,648.20, 65,472.30 and 31,984.20

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Solution

The fourth proportional to 43,648.20, 65,472.30 and 31,984.20 is: 47,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,648.20 : 65,472.30 = 31,984.20 : x
  2. Step 2: Convert to fraction form
    43,648.20/65,472.30 = 31,984.20/x
  3. Step 3: Cross multiply
    43,648.20x = 65,472.30 × 31,984.20
  4. Step 4: Simplify right side
    43,648.20x = 2,094,079,137.66
  5. Step 5: Solve for x
    x = 2,094,079,137.66/43,648.20
  6. Step 6: Final answer
    x = 47,976.30

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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.