Home / 55,154.40-82,740.66-21,874.62

Finding the Fourth Proportional to 55,154.40, 82,740.66 and 21,874.62

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Solution

The fourth proportional to 55,154.40, 82,740.66 and 21,874.62 is: 32,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,154.40 : 82,740.66 = 21,874.62 : x
  2. Step 2: Convert to fraction form
    55,154.40/82,740.66 = 21,874.62/x
  3. Step 3: Cross multiply
    55,154.40x = 82,740.66 × 21,874.62
  4. Step 4: Simplify right side
    55,154.40x = 1,809,920,496.05
  5. Step 5: Solve for x
    x = 1,809,920,496.05/55,154.40
  6. Step 6: Final answer
    x = 32,815.52

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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.