Home / 103,917.09-155,892.03-33,780

Finding the Fourth Proportional to 103,917.09, 155,892.03 and 33,780

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Solution

The fourth proportional to 103,917.09, 155,892.03 and 33,780 is: 50,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,917.09 : 155,892.03 = 33,780 : x
  2. Step 2: Convert to fraction form
    103,917.09/155,892.03 = 33,780/x
  3. Step 3: Cross multiply
    103,917.09x = 155,892.03 × 33,780
  4. Step 4: Simplify right side
    103,917.09x = 5,266,032,773.40
  5. Step 5: Solve for x
    x = 5,266,032,773.40/103,917.09
  6. Step 6: Final answer
    x = 50,675.33

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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.