Home / 68,916.21-103,173.48-51,225.23

Finding the Fourth Proportional to 68,916.21, 103,173.48 and 51,225.23

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Solution

The fourth proportional to 68,916.21, 103,173.48 and 51,225.23 is: 76,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,916.21 : 103,173.48 = 51,225.23 : x
  2. Step 2: Convert to fraction form
    68,916.21/103,173.48 = 51,225.23/x
  3. Step 3: Cross multiply
    68,916.21x = 103,173.48 × 51,225.23
  4. Step 4: Simplify right side
    68,916.21x = 5,285,085,242.90
  5. Step 5: Solve for x
    x = 5,285,085,242.90/68,916.21
  6. Step 6: Final answer
    x = 76,688.56

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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.