Home / 80,306.96-110,875.62-51,639.50

Finding the Fourth Proportional to 80,306.96, 110,875.62 and 51,639.50

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Solution

The fourth proportional to 80,306.96, 110,875.62 and 51,639.50 is: 71,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,306.96 : 110,875.62 = 51,639.50 : x
  2. Step 2: Convert to fraction form
    80,306.96/110,875.62 = 51,639.50/x
  3. Step 3: Cross multiply
    80,306.96x = 110,875.62 × 51,639.50
  4. Step 4: Simplify right side
    80,306.96x = 5,725,561,578.99
  5. Step 5: Solve for x
    x = 5,725,561,578.99/80,306.96
  6. Step 6: Final answer
    x = 71,295.96

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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.