Home / 43,129.40-64,672.22-19,735.78

Finding the Fourth Proportional to 43,129.40, 64,672.22 and 19,735.78

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Solution

The fourth proportional to 43,129.40, 64,672.22 and 19,735.78 is: 29,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.40 : 64,672.22 = 19,735.78 : x
  2. Step 2: Convert to fraction form
    43,129.40/64,672.22 = 19,735.78/x
  3. Step 3: Cross multiply
    43,129.40x = 64,672.22 × 19,735.78
  4. Step 4: Simplify right side
    43,129.40x = 1,276,356,706.03
  5. Step 5: Solve for x
    x = 1,276,356,706.03/43,129.40
  6. Step 6: Final answer
    x = 29,593.66

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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.