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Finding the Fourth Proportional to 68,852.38, 95,018.17 and 38,639.55

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Solution

The fourth proportional to 68,852.38, 95,018.17 and 38,639.55 is: 53,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852.38 : 95,018.17 = 38,639.55 : x
  2. Step 2: Convert to fraction form
    68,852.38/95,018.17 = 38,639.55/x
  3. Step 3: Cross multiply
    68,852.38x = 95,018.17 × 38,639.55
  4. Step 4: Simplify right side
    68,852.38x = 3,671,459,330.62
  5. Step 5: Solve for x
    x = 3,671,459,330.62/68,852.38
  6. Step 6: Final answer
    x = 53,323.64

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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.