Home / 63,622.20-87,806.70-38,485.56

Finding the Fourth Proportional to 63,622.20, 87,806.70 and 38,485.56

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Solution

The fourth proportional to 63,622.20, 87,806.70 and 38,485.56 is: 53,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,622.20 : 87,806.70 = 38,485.56 : x
  2. Step 2: Convert to fraction form
    63,622.20/87,806.70 = 38,485.56/x
  3. Step 3: Cross multiply
    63,622.20x = 87,806.70 × 38,485.56
  4. Step 4: Simplify right side
    63,622.20x = 3,379,290,021.25
  5. Step 5: Solve for x
    x = 3,379,290,021.25/63,622.20
  6. Step 6: Final answer
    x = 53,114.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.