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Finding the Fourth Proportional to 69,396.80, 104,056.80 and 29,947.20

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Solution

The fourth proportional to 69,396.80, 104,056.80 and 29,947.20 is: 44,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,396.80 : 104,056.80 = 29,947.20 : x
  2. Step 2: Convert to fraction form
    69,396.80/104,056.80 = 29,947.20/x
  3. Step 3: Cross multiply
    69,396.80x = 104,056.80 × 29,947.20
  4. Step 4: Simplify right side
    69,396.80x = 3,116,209,800.96
  5. Step 5: Solve for x
    x = 3,116,209,800.96/69,396.80
  6. Step 6: Final answer
    x = 44,904.23

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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.