Home / 71,408.06-107,176.33-38,156.55

Finding the Fourth Proportional to 71,408.06, 107,176.33 and 38,156.55

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Solution

The fourth proportional to 71,408.06, 107,176.33 and 38,156.55 is: 57,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,408.06 : 107,176.33 = 38,156.55 : x
  2. Step 2: Convert to fraction form
    71,408.06/107,176.33 = 38,156.55/x
  3. Step 3: Cross multiply
    71,408.06x = 107,176.33 × 38,156.55
  4. Step 4: Simplify right side
    71,408.06x = 4,089,478,640.25
  5. Step 5: Solve for x
    x = 4,089,478,640.25/71,408.06
  6. Step 6: Final answer
    x = 57,269.15

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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.