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Finding the Fourth Proportional to 56,361.38, 84,555.02 and 19,425.38

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Solution

The fourth proportional to 56,361.38, 84,555.02 and 19,425.38 is: 29,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,361.38 : 84,555.02 = 19,425.38 : x
  2. Step 2: Convert to fraction form
    56,361.38/84,555.02 = 19,425.38/x
  3. Step 3: Cross multiply
    56,361.38x = 84,555.02 × 19,425.38
  4. Step 4: Simplify right side
    56,361.38x = 1,642,513,020.20
  5. Step 5: Solve for x
    x = 1,642,513,020.20/56,361.38
  6. Step 6: Final answer
    x = 29,142.53

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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.