Home / 43,170.46-64,761.18-12,005.74

Finding the Fourth Proportional to 43,170.46, 64,761.18 and 12,005.74

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Solution

The fourth proportional to 43,170.46, 64,761.18 and 12,005.74 is: 18,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170.46 : 64,761.18 = 12,005.74 : x
  2. Step 2: Convert to fraction form
    43,170.46/64,761.18 = 12,005.74/x
  3. Step 3: Cross multiply
    43,170.46x = 64,761.18 × 12,005.74
  4. Step 4: Simplify right side
    43,170.46x = 777,505,889.17
  5. Step 5: Solve for x
    x = 777,505,889.17/43,170.46
  6. Step 6: Final answer
    x = 18,010.14

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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.