Home / 215,880.78-323,821.16-58,105.13

Finding the Fourth Proportional to 215,880.78, 323,821.16 and 58,105.13

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Solution

The fourth proportional to 215,880.78, 323,821.16 and 58,105.13 is: 87,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,880.78 : 323,821.16 = 58,105.13 : x
  2. Step 2: Convert to fraction form
    215,880.78/323,821.16 = 58,105.13/x
  3. Step 3: Cross multiply
    215,880.78x = 323,821.16 × 58,105.13
  4. Step 4: Simplify right side
    215,880.78x = 18,815,668,688.92
  5. Step 5: Solve for x
    x = 18,815,668,688.92/215,880.78
  6. Step 6: Final answer
    x = 87,157.68

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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.