Home / 69,831.54-104,748.28-19,911.65

Finding the Fourth Proportional to 69,831.54, 104,748.28 and 19,911.65

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Solution

The fourth proportional to 69,831.54, 104,748.28 and 19,911.65 is: 29,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,831.54 : 104,748.28 = 19,911.65 : x
  2. Step 2: Convert to fraction form
    69,831.54/104,748.28 = 19,911.65/x
  3. Step 3: Cross multiply
    69,831.54x = 104,748.28 × 19,911.65
  4. Step 4: Simplify right side
    69,831.54x = 2,085,711,301.55
  5. Step 5: Solve for x
    x = 2,085,711,301.55/69,831.54
  6. Step 6: Final answer
    x = 29,867.76

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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.