Home / 36,619.80-54,929.70-8,917.80

Finding the Fourth Proportional to 36,619.80, 54,929.70 and 8,917.80

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Solution

The fourth proportional to 36,619.80, 54,929.70 and 8,917.80 is: 13,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,619.80 : 54,929.70 = 8,917.80 : x
  2. Step 2: Convert to fraction form
    36,619.80/54,929.70 = 8,917.80/x
  3. Step 3: Cross multiply
    36,619.80x = 54,929.70 × 8,917.80
  4. Step 4: Simplify right side
    36,619.80x = 489,852,078.66
  5. Step 5: Solve for x
    x = 489,852,078.66/36,619.80
  6. Step 6: Final answer
    x = 13,376.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.