Home / 43,257.42-64,861.02-21,042.78

Finding the Fourth Proportional to 43,257.42, 64,861.02 and 21,042.78

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Solution

The fourth proportional to 43,257.42, 64,861.02 and 21,042.78 is: 31,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.42 : 64,861.02 = 21,042.78 : x
  2. Step 2: Convert to fraction form
    43,257.42/64,861.02 = 21,042.78/x
  3. Step 3: Cross multiply
    43,257.42x = 64,861.02 × 21,042.78
  4. Step 4: Simplify right side
    43,257.42x = 1,364,856,174.44
  5. Step 5: Solve for x
    x = 1,364,856,174.44/43,257.42
  6. Step 6: Final answer
    x = 31,551.96

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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.