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Finding the Fourth Proportional to 70,110.68, 105,179.88 and 25,737.81

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Solution

The fourth proportional to 70,110.68, 105,179.88 and 25,737.81 is: 38,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,110.68 : 105,179.88 = 25,737.81 : x
  2. Step 2: Convert to fraction form
    70,110.68/105,179.88 = 25,737.81/x
  3. Step 3: Cross multiply
    70,110.68x = 105,179.88 × 25,737.81
  4. Step 4: Simplify right side
    70,110.68x = 2,707,099,767.26
  5. Step 5: Solve for x
    x = 2,707,099,767.26/70,110.68
  6. Step 6: Final answer
    x = 38,611.80

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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.