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Finding the Fourth Proportional to 68,864.98, 95,029.68 and 38,647.48

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Solution

The fourth proportional to 68,864.98, 95,029.68 and 38,647.48 is: 53,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,864.98 : 95,029.68 = 38,647.48 : x
  2. Step 2: Convert to fraction form
    68,864.98/95,029.68 = 38,647.48/x
  3. Step 3: Cross multiply
    68,864.98x = 95,029.68 × 38,647.48
  4. Step 4: Simplify right side
    68,864.98x = 3,672,657,657.21
  5. Step 5: Solve for x
    x = 3,672,657,657.21/68,864.98
  6. Step 6: Final answer
    x = 53,331.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.