Home / 76,929.20-115,480.20-41,850.80

Finding the Fourth Proportional to 76,929.20, 115,480.20 and 41,850.80

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Solution

The fourth proportional to 76,929.20, 115,480.20 and 41,850.80 is: 62,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929.20 : 115,480.20 = 41,850.80 : x
  2. Step 2: Convert to fraction form
    76,929.20/115,480.20 = 41,850.80/x
  3. Step 3: Cross multiply
    76,929.20x = 115,480.20 × 41,850.80
  4. Step 4: Simplify right side
    76,929.20x = 4,832,938,754.16
  5. Step 5: Solve for x
    x = 4,832,938,754.16/76,929.20
  6. Step 6: Final answer
    x = 62,823.20

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1.5x scale

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.