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Finding the Fourth Proportional to 68,855.72, 95,018.62 and 38,641.52

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Solution

The fourth proportional to 68,855.72, 95,018.62 and 38,641.52 is: 53,324.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.72 : 95,018.62 = 38,641.52 : x
  2. Step 2: Convert to fraction form
    68,855.72/95,018.62 = 38,641.52/x
  3. Step 3: Cross multiply
    68,855.72x = 95,018.62 × 38,641.52
  4. Step 4: Simplify right side
    68,855.72x = 3,671,663,905.10
  5. Step 5: Solve for x
    x = 3,671,663,905.10/68,855.72
  6. Step 6: Final answer
    x = 53,324.02

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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.