Home / 45,428.41-68,142.87-40,453.84

Finding the Fourth Proportional to 45,428.41, 68,142.87 and 40,453.84

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Solution

The fourth proportional to 45,428.41, 68,142.87 and 40,453.84 is: 60,680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.41 : 68,142.87 = 40,453.84 : x
  2. Step 2: Convert to fraction form
    45,428.41/68,142.87 = 40,453.84/x
  3. Step 3: Cross multiply
    45,428.41x = 68,142.87 × 40,453.84
  4. Step 4: Simplify right side
    45,428.41x = 2,756,640,997.00
  5. Step 5: Solve for x
    x = 2,756,640,997.00/45,428.41
  6. Step 6: Final answer
    x = 60,680.99

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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.