Home / 60,831.68-91,247.64-19,278.56

Finding the Fourth Proportional to 60,831.68, 91,247.64 and 19,278.56

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Solution

The fourth proportional to 60,831.68, 91,247.64 and 19,278.56 is: 28,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,831.68 : 91,247.64 = 19,278.56 : x
  2. Step 2: Convert to fraction form
    60,831.68/91,247.64 = 19,278.56/x
  3. Step 3: Cross multiply
    60,831.68x = 91,247.64 × 19,278.56
  4. Step 4: Simplify right side
    60,831.68x = 1,759,123,102.60
  5. Step 5: Solve for x
    x = 1,759,123,102.60/60,831.68
  6. Step 6: Final answer
    x = 28,917.88

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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.