Home / 55,150.38-82,734.67-21,870.61

Finding the Fourth Proportional to 55,150.38, 82,734.67 and 21,870.61

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Solution

The fourth proportional to 55,150.38, 82,734.67 and 21,870.61 is: 32,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,150.38 : 82,734.67 = 21,870.61 : x
  2. Step 2: Convert to fraction form
    55,150.38/82,734.67 = 21,870.61/x
  3. Step 3: Cross multiply
    55,150.38x = 82,734.67 × 21,870.61
  4. Step 4: Simplify right side
    55,150.38x = 1,809,457,701.05
  5. Step 5: Solve for x
    x = 1,809,457,701.05/55,150.38
  6. Step 6: Final answer
    x = 32,809.52

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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.