Home / 215,078.08-322,616.40-55,153.84

Finding the Fourth Proportional to 215,078.08, 322,616.40 and 55,153.84

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Solution

The fourth proportional to 215,078.08, 322,616.40 and 55,153.84 is: 82,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078.08 : 322,616.40 = 55,153.84 : x
  2. Step 2: Convert to fraction form
    215,078.08/322,616.40 = 55,153.84/x
  3. Step 3: Cross multiply
    215,078.08x = 322,616.40 × 55,153.84
  4. Step 4: Simplify right side
    215,078.08x = 17,793,533,306.98
  5. Step 5: Solve for x
    x = 17,793,533,306.98/215,078.08
  6. Step 6: Final answer
    x = 82,730.58

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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.