Home / 69,618.69-104,414.81-19,686.75

Finding the Fourth Proportional to 69,618.69, 104,414.81 and 19,686.75

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Solution

The fourth proportional to 69,618.69, 104,414.81 and 19,686.75 is: 29,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,618.69 : 104,414.81 = 19,686.75 : x
  2. Step 2: Convert to fraction form
    69,618.69/104,414.81 = 19,686.75/x
  3. Step 3: Cross multiply
    69,618.69x = 104,414.81 × 19,686.75
  4. Step 4: Simplify right side
    69,618.69x = 2,055,587,770.78
  5. Step 5: Solve for x
    x = 2,055,587,770.78/69,618.69
  6. Step 6: Final answer
    x = 29,526.38

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1.5x scale

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.