Home / 68,428.89-102,675.83-47,401.29

Finding the Fourth Proportional to 68,428.89, 102,675.83 and 47,401.29

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Solution

The fourth proportional to 68,428.89, 102,675.83 and 47,401.29 is: 71,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,428.89 : 102,675.83 = 47,401.29 : x
  2. Step 2: Convert to fraction form
    68,428.89/102,675.83 = 47,401.29/x
  3. Step 3: Cross multiply
    68,428.89x = 102,675.83 × 47,401.29
  4. Step 4: Simplify right side
    68,428.89x = 4,866,966,556.81
  5. Step 5: Solve for x
    x = 4,866,966,556.81/68,428.89
  6. Step 6: Final answer
    x = 71,124.44

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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.