Home / 68,289.06-102,378.36-45,822.90

Finding the Fourth Proportional to 68,289.06, 102,378.36 and 45,822.90

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Solution

The fourth proportional to 68,289.06, 102,378.36 and 45,822.90 is: 68,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,289.06 : 102,378.36 = 45,822.90 : x
  2. Step 2: Convert to fraction form
    68,289.06/102,378.36 = 45,822.90/x
  3. Step 3: Cross multiply
    68,289.06x = 102,378.36 × 45,822.90
  4. Step 4: Simplify right side
    68,289.06x = 4,691,273,352.44
  5. Step 5: Solve for x
    x = 4,691,273,352.44/68,289.06
  6. Step 6: Final answer
    x = 68,697.29

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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.