Home / 215,078.58-322,617.15-55,154.34

Finding the Fourth Proportional to 215,078.58, 322,617.15 and 55,154.34

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Solution

The fourth proportional to 215,078.58, 322,617.15 and 55,154.34 is: 82,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078.58 : 322,617.15 = 55,154.34 : x
  2. Step 2: Convert to fraction form
    215,078.58/322,617.15 = 55,154.34/x
  3. Step 3: Cross multiply
    215,078.58x = 322,617.15 × 55,154.34
  4. Step 4: Simplify right side
    215,078.58x = 17,793,735,980.93
  5. Step 5: Solve for x
    x = 17,793,735,980.93/215,078.58
  6. Step 6: Final answer
    x = 82,731.33

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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.