Home / 69,935.60-104,947.14-28,382.60

Finding the Fourth Proportional to 69,935.60, 104,947.14 and 28,382.60

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Solution

The fourth proportional to 69,935.60, 104,947.14 and 28,382.60 is: 42,591.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,935.60 : 104,947.14 = 28,382.60 : x
  2. Step 2: Convert to fraction form
    69,935.60/104,947.14 = 28,382.60/x
  3. Step 3: Cross multiply
    69,935.60x = 104,947.14 × 28,382.60
  4. Step 4: Simplify right side
    69,935.60x = 2,978,673,064.57
  5. Step 5: Solve for x
    x = 2,978,673,064.57/69,935.60
  6. Step 6: Final answer
    x = 42,591.66

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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.