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Finding the Fourth Proportional to 70,123.65, 105,236.22 and 27,435.39

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Solution

The fourth proportional to 70,123.65, 105,236.22 and 27,435.39 is: 41,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.65 : 105,236.22 = 27,435.39 : x
  2. Step 2: Convert to fraction form
    70,123.65/105,236.22 = 27,435.39/x
  3. Step 3: Cross multiply
    70,123.65x = 105,236.22 × 27,435.39
  4. Step 4: Simplify right side
    70,123.65x = 2,887,196,737.83
  5. Step 5: Solve for x
    x = 2,887,196,737.83/70,123.65
  6. Step 6: Final answer
    x = 41,172.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.