Home / 47,115.72-64,992.66-29,421

Finding the Fourth Proportional to 47,115.72, 64,992.66 and 29,421

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Solution

The fourth proportional to 47,115.72, 64,992.66 and 29,421 is: 40,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.72 : 64,992.66 = 29,421 : x
  2. Step 2: Convert to fraction form
    47,115.72/64,992.66 = 29,421/x
  3. Step 3: Cross multiply
    47,115.72x = 64,992.66 × 29,421
  4. Step 4: Simplify right side
    47,115.72x = 1,912,149,049.86
  5. Step 5: Solve for x
    x = 1,912,149,049.86/47,115.72
  6. Step 6: Final answer
    x = 40,584.10

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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.