Home / 68,342.10-102,513.15-57,455.70

Finding the Fourth Proportional to 68,342.10, 102,513.15 and 57,455.70

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Solution

The fourth proportional to 68,342.10, 102,513.15 and 57,455.70 is: 86,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,342.10 : 102,513.15 = 57,455.70 : x
  2. Step 2: Convert to fraction form
    68,342.10/102,513.15 = 57,455.70/x
  3. Step 3: Cross multiply
    68,342.10x = 102,513.15 × 57,455.70
  4. Step 4: Simplify right side
    68,342.10x = 5,889,964,792.46
  5. Step 5: Solve for x
    x = 5,889,964,792.46/68,342.10
  6. Step 6: Final answer
    x = 86,183.55

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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.