Home / 47,648.47-71,472.30-12,109.89

Finding the Fourth Proportional to 47,648.47, 71,472.30 and 12,109.89

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Solution

The fourth proportional to 47,648.47, 71,472.30 and 12,109.89 is: 18,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,648.47 : 71,472.30 = 12,109.89 : x
  2. Step 2: Convert to fraction form
    47,648.47/71,472.30 = 12,109.89/x
  3. Step 3: Cross multiply
    47,648.47x = 71,472.30 × 12,109.89
  4. Step 4: Simplify right side
    47,648.47x = 865,521,847.21
  5. Step 5: Solve for x
    x = 865,521,847.21/47,648.47
  6. Step 6: Final answer
    x = 18,164.73

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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.