Home / 68,131.40-102,002.70-41,887.40

Finding the Fourth Proportional to 68,131.40, 102,002.70 and 41,887.40

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Solution

The fourth proportional to 68,131.40, 102,002.70 and 41,887.40 is: 62,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,131.40 : 102,002.70 = 41,887.40 : x
  2. Step 2: Convert to fraction form
    68,131.40/102,002.70 = 41,887.40/x
  3. Step 3: Cross multiply
    68,131.40x = 102,002.70 × 41,887.40
  4. Step 4: Simplify right side
    68,131.40x = 4,272,627,895.98
  5. Step 5: Solve for x
    x = 4,272,627,895.98/68,131.40
  6. Step 6: Final answer
    x = 62,711.58

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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.