Home / 54,781.41-82,172.70-17,340.78

Finding the Fourth Proportional to 54,781.41, 82,172.70 and 17,340.78

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Solution

The fourth proportional to 54,781.41, 82,172.70 and 17,340.78 is: 26,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.41 : 82,172.70 = 17,340.78 : x
  2. Step 2: Convert to fraction form
    54,781.41/82,172.70 = 17,340.78/x
  3. Step 3: Cross multiply
    54,781.41x = 82,172.70 × 17,340.78
  4. Step 4: Simplify right side
    54,781.41x = 1,424,938,712.71
  5. Step 5: Solve for x
    x = 1,424,938,712.71/54,781.41
  6. Step 6: Final answer
    x = 26,011.36

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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.