Home / 69,318.60-103,962.54-19,385.28

Finding the Fourth Proportional to 69,318.60, 103,962.54 and 19,385.28

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Solution

The fourth proportional to 69,318.60, 103,962.54 and 19,385.28 is: 29,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,318.60 : 103,962.54 = 19,385.28 : x
  2. Step 2: Convert to fraction form
    69,318.60/103,962.54 = 19,385.28/x
  3. Step 3: Cross multiply
    69,318.60x = 103,962.54 × 19,385.28
  4. Step 4: Simplify right side
    69,318.60x = 2,015,342,947.41
  5. Step 5: Solve for x
    x = 2,015,342,947.41/69,318.60
  6. Step 6: Final answer
    x = 29,073.62

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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.