Home / 96,831.90-133,628.09-54,390.46

Finding the Fourth Proportional to 96,831.90, 133,628.09 and 54,390.46

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Solution

The fourth proportional to 96,831.90, 133,628.09 and 54,390.46 is: 75,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,831.90 : 133,628.09 = 54,390.46 : x
  2. Step 2: Convert to fraction form
    96,831.90/133,628.09 = 54,390.46/x
  3. Step 3: Cross multiply
    96,831.90x = 133,628.09 × 54,390.46
  4. Step 4: Simplify right side
    96,831.90x = 7,268,093,284.02
  5. Step 5: Solve for x
    x = 7,268,093,284.02/96,831.90
  6. Step 6: Final answer
    x = 75,058.87

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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.