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Finding the Fourth Proportional to 68,663.26, 102,997.62 and 21,283.27

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Solution

The fourth proportional to 68,663.26, 102,997.62 and 21,283.27 is: 31,925.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,663.26 : 102,997.62 = 21,283.27 : x
  2. Step 2: Convert to fraction form
    68,663.26/102,997.62 = 21,283.27/x
  3. Step 3: Cross multiply
    68,663.26x = 102,997.62 × 21,283.27
  4. Step 4: Simplify right side
    68,663.26x = 2,192,125,534.41
  5. Step 5: Solve for x
    x = 2,192,125,534.41/68,663.26
  6. Step 6: Final answer
    x = 31,925.74

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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.