Home / 91,968.35-137,955.11-25,408.49

Finding the Fourth Proportional to 91,968.35, 137,955.11 and 25,408.49

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Solution

The fourth proportional to 91,968.35, 137,955.11 and 25,408.49 is: 38,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,968.35 : 137,955.11 = 25,408.49 : x
  2. Step 2: Convert to fraction form
    91,968.35/137,955.11 = 25,408.49/x
  3. Step 3: Cross multiply
    91,968.35x = 137,955.11 × 25,408.49
  4. Step 4: Simplify right side
    91,968.35x = 3,505,231,032.88
  5. Step 5: Solve for x
    x = 3,505,231,032.88/91,968.35
  6. Step 6: Final answer
    x = 38,113.45

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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.