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Finding the Fourth Proportional to 68,714.58, 102,864.36 and 62,143.86

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Solution

The fourth proportional to 68,714.58, 102,864.36 and 62,143.86 is: 93,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,714.58 : 102,864.36 = 62,143.86 : x
  2. Step 2: Convert to fraction form
    68,714.58/102,864.36 = 62,143.86/x
  3. Step 3: Cross multiply
    68,714.58x = 102,864.36 × 62,143.86
  4. Step 4: Simplify right side
    68,714.58x = 6,392,388,386.83
  5. Step 5: Solve for x
    x = 6,392,388,386.83/68,714.58
  6. Step 6: Final answer
    x = 93,028.12

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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.