Home / 96,831.72-133,640.28-54,390.26

Finding the Fourth Proportional to 96,831.72, 133,640.28 and 54,390.26

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Solution

The fourth proportional to 96,831.72, 133,640.28 and 54,390.26 is: 75,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,831.72 : 133,640.28 = 54,390.26 : x
  2. Step 2: Convert to fraction form
    96,831.72/133,640.28 = 54,390.26/x
  3. Step 3: Cross multiply
    96,831.72x = 133,640.28 × 54,390.26
  4. Step 4: Simplify right side
    96,831.72x = 7,268,729,575.67
  5. Step 5: Solve for x
    x = 7,268,729,575.67/96,831.72
  6. Step 6: Final answer
    x = 75,065.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.