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Finding the Fourth Proportional to 80,449.50, 111,020.73 and 44,639.51

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Solution

The fourth proportional to 80,449.50, 111,020.73 and 44,639.51 is: 61,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449.50 : 111,020.73 = 44,639.51 : x
  2. Step 2: Convert to fraction form
    80,449.50/111,020.73 = 44,639.51/x
  3. Step 3: Cross multiply
    80,449.50x = 111,020.73 × 44,639.51
  4. Step 4: Simplify right side
    80,449.50x = 4,955,910,987.04
  5. Step 5: Solve for x
    x = 4,955,910,987.04/80,449.50
  6. Step 6: Final answer
    x = 61,602.76

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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.