Home / 68,131.34-102,153.26-47,012.21

Finding the Fourth Proportional to 68,131.34, 102,153.26 and 47,012.21

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Solution

The fourth proportional to 68,131.34, 102,153.26 and 47,012.21 is: 70,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,131.34 : 102,153.26 = 47,012.21 : x
  2. Step 2: Convert to fraction form
    68,131.34/102,153.26 = 47,012.21/x
  3. Step 3: Cross multiply
    68,131.34x = 102,153.26 × 47,012.21
  4. Step 4: Simplify right side
    68,131.34x = 4,802,450,511.30
  5. Step 5: Solve for x
    x = 4,802,450,511.30/68,131.34
  6. Step 6: Final answer
    x = 70,488.13

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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.