Home / 215,815.60-323,760.40-66,052.18

Finding the Fourth Proportional to 215,815.60, 323,760.40 and 66,052.18

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Solution

The fourth proportional to 215,815.60, 323,760.40 and 66,052.18 is: 99,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,815.60 : 323,760.40 = 66,052.18 : x
  2. Step 2: Convert to fraction form
    215,815.60/323,760.40 = 66,052.18/x
  3. Step 3: Cross multiply
    215,815.60x = 323,760.40 × 66,052.18
  4. Step 4: Simplify right side
    215,815.60x = 21,385,080,217.67
  5. Step 5: Solve for x
    x = 21,385,080,217.67/215,815.60
  6. Step 6: Final answer
    x = 99,089.59

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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.