Home / 55,480.20-83,285.10-31,806.60

Finding the Fourth Proportional to 55,480.20, 83,285.10 and 31,806.60

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Solution

The fourth proportional to 55,480.20, 83,285.10 and 31,806.60 is: 47,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,480.20 : 83,285.10 = 31,806.60 : x
  2. Step 2: Convert to fraction form
    55,480.20/83,285.10 = 31,806.60/x
  3. Step 3: Cross multiply
    55,480.20x = 83,285.10 × 31,806.60
  4. Step 4: Simplify right side
    55,480.20x = 2,649,015,861.66
  5. Step 5: Solve for x
    x = 2,649,015,861.66/55,480.20
  6. Step 6: Final answer
    x = 47,747.05

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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.