Home / 47,175.90-70,764.93-12,115.86

Finding the Fourth Proportional to 47,175.90, 70,764.93 and 12,115.86

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Solution

The fourth proportional to 47,175.90, 70,764.93 and 12,115.86 is: 18,174.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,175.90 : 70,764.93 = 12,115.86 : x
  2. Step 2: Convert to fraction form
    47,175.90/70,764.93 = 12,115.86/x
  3. Step 3: Cross multiply
    47,175.90x = 70,764.93 × 12,115.86
  4. Step 4: Simplify right side
    47,175.90x = 857,377,984.79
  5. Step 5: Solve for x
    x = 857,377,984.79/47,175.90
  6. Step 6: Final answer
    x = 18,174.07

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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.