Home / 47,176.21-70,764.32-12,115.90

Finding the Fourth Proportional to 47,176.21, 70,764.32 and 12,115.90

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Solution

The fourth proportional to 47,176.21, 70,764.32 and 12,115.90 is: 18,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,176.21 : 70,764.32 = 12,115.90 : x
  2. Step 2: Convert to fraction form
    47,176.21/70,764.32 = 12,115.90/x
  3. Step 3: Cross multiply
    47,176.21x = 70,764.32 × 12,115.90
  4. Step 4: Simplify right side
    47,176.21x = 857,373,475.28
  5. Step 5: Solve for x
    x = 857,373,475.28/47,176.21
  6. Step 6: Final answer
    x = 18,173.85

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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.