Home / 85,255.53-127,730.07-50,176.05

Finding the Fourth Proportional to 85,255.53, 127,730.07 and 50,176.05

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Solution

The fourth proportional to 85,255.53, 127,730.07 and 50,176.05 is: 75,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,255.53 : 127,730.07 = 50,176.05 : x
  2. Step 2: Convert to fraction form
    85,255.53/127,730.07 = 50,176.05/x
  3. Step 3: Cross multiply
    85,255.53x = 127,730.07 × 50,176.05
  4. Step 4: Simplify right side
    85,255.53x = 6,408,990,378.82
  5. Step 5: Solve for x
    x = 6,408,990,378.82/85,255.53
  6. Step 6: Final answer
    x = 75,173.90

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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.