Home / 47,183.40-70,776.18-12,123.36

Finding the Fourth Proportional to 47,183.40, 70,776.18 and 12,123.36

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Solution

The fourth proportional to 47,183.40, 70,776.18 and 12,123.36 is: 18,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,183.40 : 70,776.18 = 12,123.36 : x
  2. Step 2: Convert to fraction form
    47,183.40/70,776.18 = 12,123.36/x
  3. Step 3: Cross multiply
    47,183.40x = 70,776.18 × 12,123.36
  4. Step 4: Simplify right side
    47,183.40x = 858,045,109.56
  5. Step 5: Solve for x
    x = 858,045,109.56/47,183.40
  6. Step 6: Final answer
    x = 18,185.32

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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.