Home / 69,811.38-104,723.55-28,261.62

Finding the Fourth Proportional to 69,811.38, 104,723.55 and 28,261.62

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Solution

The fourth proportional to 69,811.38, 104,723.55 and 28,261.62 is: 42,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,811.38 : 104,723.55 = 28,261.62 : x
  2. Step 2: Convert to fraction form
    69,811.38/104,723.55 = 28,261.62/x
  3. Step 3: Cross multiply
    69,811.38x = 104,723.55 × 28,261.62
  4. Step 4: Simplify right side
    69,811.38x = 2,959,657,175.15
  5. Step 5: Solve for x
    x = 2,959,657,175.15/69,811.38
  6. Step 6: Final answer
    x = 42,395.05

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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.