Home / 81,269.91-112,107.33-47,274.57

Finding the Fourth Proportional to 81,269.91, 112,107.33 and 47,274.57

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Solution

The fourth proportional to 81,269.91, 112,107.33 and 47,274.57 is: 65,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.91 : 112,107.33 = 47,274.57 : x
  2. Step 2: Convert to fraction form
    81,269.91/112,107.33 = 47,274.57/x
  3. Step 3: Cross multiply
    81,269.91x = 112,107.33 × 47,274.57
  4. Step 4: Simplify right side
    81,269.91x = 5,299,825,583.23
  5. Step 5: Solve for x
    x = 5,299,825,583.23/81,269.91
  6. Step 6: Final answer
    x = 65,212.64

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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.