Home / 68,945.76-103,416.58-19,028.85

Finding the Fourth Proportional to 68,945.76, 103,416.58 and 19,028.85

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Solution

The fourth proportional to 68,945.76, 103,416.58 and 19,028.85 is: 28,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,945.76 : 103,416.58 = 19,028.85 : x
  2. Step 2: Convert to fraction form
    68,945.76/103,416.58 = 19,028.85/x
  3. Step 3: Cross multiply
    68,945.76x = 103,416.58 × 19,028.85
  4. Step 4: Simplify right side
    68,945.76x = 1,967,898,224.31
  5. Step 5: Solve for x
    x = 1,967,898,224.31/68,945.76
  6. Step 6: Final answer
    x = 28,542.70

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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.