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Finding the Fourth Proportional to 66,711, 92,061.54 and 36,496.68

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Solution

The fourth proportional to 66,711, 92,061.54 and 36,496.68 is: 50,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,711 : 92,061.54 = 36,496.68 : x
  2. Step 2: Convert to fraction form
    66,711/92,061.54 = 36,496.68/x
  3. Step 3: Cross multiply
    66,711x = 92,061.54 × 36,496.68
  4. Step 4: Simplify right side
    66,711x = 3,359,940,565.69
  5. Step 5: Solve for x
    x = 3,359,940,565.69/66,711
  6. Step 6: Final answer
    x = 50,365.62

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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.