Home / 103,781.28-155,693.79-33,655.14

Finding the Fourth Proportional to 103,781.28, 155,693.79 and 33,655.14

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Solution

The fourth proportional to 103,781.28, 155,693.79 and 33,655.14 is: 50,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,781.28 : 155,693.79 = 33,655.14 : x
  2. Step 2: Convert to fraction form
    103,781.28/155,693.79 = 33,655.14/x
  3. Step 3: Cross multiply
    103,781.28x = 155,693.79 × 33,655.14
  4. Step 4: Simplify right side
    103,781.28x = 5,239,896,299.58
  5. Step 5: Solve for x
    x = 5,239,896,299.58/103,781.28
  6. Step 6: Final answer
    x = 50,489.80

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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.