Home / 87,654.99-120,956.59-48,890.42

Finding the Fourth Proportional to 87,654.99, 120,956.59 and 48,890.42

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Solution

The fourth proportional to 87,654.99, 120,956.59 and 48,890.42 is: 67,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654.99 : 120,956.59 = 48,890.42 : x
  2. Step 2: Convert to fraction form
    87,654.99/120,956.59 = 48,890.42/x
  3. Step 3: Cross multiply
    87,654.99x = 120,956.59 × 48,890.42
  4. Step 4: Simplify right side
    87,654.99x = 5,913,618,486.87
  5. Step 5: Solve for x
    x = 5,913,618,486.87/87,654.99
  6. Step 6: Final answer
    x = 67,464.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.