Home / 69,718.81-104,577.31-17,128.75

Finding the Fourth Proportional to 69,718.81, 104,577.31 and 17,128.75

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Solution

The fourth proportional to 69,718.81, 104,577.31 and 17,128.75 is: 25,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.81 : 104,577.31 = 17,128.75 : x
  2. Step 2: Convert to fraction form
    69,718.81/104,577.31 = 17,128.75/x
  3. Step 3: Cross multiply
    69,718.81x = 104,577.31 × 17,128.75
  4. Step 4: Simplify right side
    69,718.81x = 1,791,278,598.66
  5. Step 5: Solve for x
    x = 1,791,278,598.66/69,718.81
  6. Step 6: Final answer
    x = 25,692.90

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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.