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Finding the Fourth Proportional to 70,035.51, 105,059.69 and 27,905.37

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Solution

The fourth proportional to 70,035.51, 105,059.69 and 27,905.37 is: 41,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.51 : 105,059.69 = 27,905.37 : x
  2. Step 2: Convert to fraction form
    70,035.51/105,059.69 = 27,905.37/x
  3. Step 3: Cross multiply
    70,035.51x = 105,059.69 × 27,905.37
  4. Step 4: Simplify right side
    70,035.51x = 2,931,729,382.01
  5. Step 5: Solve for x
    x = 2,931,729,382.01/70,035.51
  6. Step 6: Final answer
    x = 41,860.61

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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.