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Finding the Fourth Proportional to 68,476.60, 102,714.90 and 29,020.60

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Solution

The fourth proportional to 68,476.60, 102,714.90 and 29,020.60 is: 43,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,476.60 : 102,714.90 = 29,020.60 : x
  2. Step 2: Convert to fraction form
    68,476.60/102,714.90 = 29,020.60/x
  3. Step 3: Cross multiply
    68,476.60x = 102,714.90 × 29,020.60
  4. Step 4: Simplify right side
    68,476.60x = 2,980,848,026.94
  5. Step 5: Solve for x
    x = 2,980,848,026.94/68,476.60
  6. Step 6: Final answer
    x = 43,530.90

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1.5x scale

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.