Home / 69,709.86-104,565.14-17,119.36

Finding the Fourth Proportional to 69,709.86, 104,565.14 and 17,119.36

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Solution

The fourth proportional to 69,709.86, 104,565.14 and 17,119.36 is: 25,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.86 : 104,565.14 = 17,119.36 : x
  2. Step 2: Convert to fraction form
    69,709.86/104,565.14 = 17,119.36/x
  3. Step 3: Cross multiply
    69,709.86x = 104,565.14 × 17,119.36
  4. Step 4: Simplify right side
    69,709.86x = 1,790,088,275.11
  5. Step 5: Solve for x
    x = 1,790,088,275.11/69,709.86
  6. Step 6: Final answer
    x = 25,679.13

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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.