Home / 68,522.16-102,638.40-35,140.56

Finding the Fourth Proportional to 68,522.16, 102,638.40 and 35,140.56

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Solution

The fourth proportional to 68,522.16, 102,638.40 and 35,140.56 is: 52,636.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,522.16 : 102,638.40 = 35,140.56 : x
  2. Step 2: Convert to fraction form
    68,522.16/102,638.40 = 35,140.56/x
  3. Step 3: Cross multiply
    68,522.16x = 102,638.40 × 35,140.56
  4. Step 4: Simplify right side
    68,522.16x = 3,606,770,853.50
  5. Step 5: Solve for x
    x = 3,606,770,853.50/68,522.16
  6. Step 6: Final answer
    x = 52,636.56

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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.