Home / 77,229.02-115,846.29-26,627.78

Finding the Fourth Proportional to 77,229.02, 115,846.29 and 26,627.78

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Solution

The fourth proportional to 77,229.02, 115,846.29 and 26,627.78 is: 39,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,229.02 : 115,846.29 = 26,627.78 : x
  2. Step 2: Convert to fraction form
    77,229.02/115,846.29 = 26,627.78/x
  3. Step 3: Cross multiply
    77,229.02x = 115,846.29 × 26,627.78
  4. Step 4: Simplify right side
    77,229.02x = 3,084,729,523.94
  5. Step 5: Solve for x
    x = 3,084,729,523.94/77,229.02
  6. Step 6: Final answer
    x = 39,942.62

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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.