Home / 72,351.09-108,693.50-69,361.79

Finding the Fourth Proportional to 72,351.09, 108,693.50 and 69,361.79

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Solution

The fourth proportional to 72,351.09, 108,693.50 and 69,361.79 is: 104,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,351.09 : 108,693.50 = 69,361.79 : x
  2. Step 2: Convert to fraction form
    72,351.09/108,693.50 = 69,361.79/x
  3. Step 3: Cross multiply
    72,351.09x = 108,693.50 × 69,361.79
  4. Step 4: Simplify right side
    72,351.09x = 7,539,174,831.09
  5. Step 5: Solve for x
    x = 7,539,174,831.09/72,351.09
  6. Step 6: Final answer
    x = 104,202.64

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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.