Home / 74,402.43-111,568.47-28,831.48

Finding the Fourth Proportional to 74,402.43, 111,568.47 and 28,831.48

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Solution

The fourth proportional to 74,402.43, 111,568.47 and 28,831.48 is: 43,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.43 : 111,568.47 = 28,831.48 : x
  2. Step 2: Convert to fraction form
    74,402.43/111,568.47 = 28,831.48/x
  3. Step 3: Cross multiply
    74,402.43x = 111,568.47 × 28,831.48
  4. Step 4: Simplify right side
    74,402.43x = 3,216,684,111.44
  5. Step 5: Solve for x
    x = 3,216,684,111.44/74,402.43
  6. Step 6: Final answer
    x = 43,233.59

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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.