Home / 68,084.33-102,127.21-20,707.13

Finding the Fourth Proportional to 68,084.33, 102,127.21 and 20,707.13

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Solution

The fourth proportional to 68,084.33, 102,127.21 and 20,707.13 is: 31,060.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,084.33 : 102,127.21 = 20,707.13 : x
  2. Step 2: Convert to fraction form
    68,084.33/102,127.21 = 20,707.13/x
  3. Step 3: Cross multiply
    68,084.33x = 102,127.21 × 20,707.13
  4. Step 4: Simplify right side
    68,084.33x = 2,114,761,617.56
  5. Step 5: Solve for x
    x = 2,114,761,617.56/68,084.33
  6. Step 6: Final answer
    x = 31,060.92

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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.