Home / 74,420.94-111,632.43-21,831.48

Finding the Fourth Proportional to 74,420.94, 111,632.43 and 21,831.48

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Solution

The fourth proportional to 74,420.94, 111,632.43 and 21,831.48 is: 32,747.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.94 : 111,632.43 = 21,831.48 : x
  2. Step 2: Convert to fraction form
    74,420.94/111,632.43 = 21,831.48/x
  3. Step 3: Cross multiply
    74,420.94x = 111,632.43 × 21,831.48
  4. Step 4: Simplify right side
    74,420.94x = 2,437,101,162.90
  5. Step 5: Solve for x
    x = 2,437,101,162.90/74,420.94
  6. Step 6: Final answer
    x = 32,747.52

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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.