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Finding the Fourth Proportional to 81,104.50, 111,922.99 and 45,295.03

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Solution

The fourth proportional to 81,104.50, 111,922.99 and 45,295.03 is: 62,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,104.50 : 111,922.99 = 45,295.03 : x
  2. Step 2: Convert to fraction form
    81,104.50/111,922.99 = 45,295.03/x
  3. Step 3: Cross multiply
    81,104.50x = 111,922.99 × 45,295.03
  4. Step 4: Simplify right side
    81,104.50x = 5,069,555,189.74
  5. Step 5: Solve for x
    x = 5,069,555,189.74/81,104.50
  6. Step 6: Final answer
    x = 62,506.46

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1.5x scale

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.