Home / 71,149.54-98,183.16-39,317.76

Finding the Fourth Proportional to 71,149.54, 98,183.16 and 39,317.76

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Solution

The fourth proportional to 71,149.54, 98,183.16 and 39,317.76 is: 54,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.54 : 98,183.16 = 39,317.76 : x
  2. Step 2: Convert to fraction form
    71,149.54/98,183.16 = 39,317.76/x
  3. Step 3: Cross multiply
    71,149.54x = 98,183.16 × 39,317.76
  4. Step 4: Simplify right side
    71,149.54x = 3,860,341,920.92
  5. Step 5: Solve for x
    x = 3,860,341,920.92/71,149.54
  6. Step 6: Final answer
    x = 54,256.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.