Home / 43,245.38-64,868.13-12,080.63

Finding the Fourth Proportional to 43,245.38, 64,868.13 and 12,080.63

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Solution

The fourth proportional to 43,245.38, 64,868.13 and 12,080.63 is: 18,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,245.38 : 64,868.13 = 12,080.63 : x
  2. Step 2: Convert to fraction form
    43,245.38/64,868.13 = 12,080.63/x
  3. Step 3: Cross multiply
    43,245.38x = 64,868.13 × 12,080.63
  4. Step 4: Simplify right side
    43,245.38x = 783,647,552.98
  5. Step 5: Solve for x
    x = 783,647,552.98/43,245.38
  6. Step 6: Final answer
    x = 18,120.96

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1.5x scale

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.