Home / 68,453.28-102,635.64-45,008.64

Finding the Fourth Proportional to 68,453.28, 102,635.64 and 45,008.64

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Solution

The fourth proportional to 68,453.28, 102,635.64 and 45,008.64 is: 67,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,453.28 : 102,635.64 = 45,008.64 : x
  2. Step 2: Convert to fraction form
    68,453.28/102,635.64 = 45,008.64/x
  3. Step 3: Cross multiply
    68,453.28x = 102,635.64 × 45,008.64
  4. Step 4: Simplify right side
    68,453.28x = 4,619,490,571.93
  5. Step 5: Solve for x
    x = 4,619,490,571.93/68,453.28
  6. Step 6: Final answer
    x = 67,483.85

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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.