Home / 69,831.11-96,371.71-39,616.70

Finding the Fourth Proportional to 69,831.11, 96,371.71 and 39,616.70

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Solution

The fourth proportional to 69,831.11, 96,371.71 and 39,616.70 is: 54,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,831.11 : 96,371.71 = 39,616.70 : x
  2. Step 2: Convert to fraction form
    69,831.11/96,371.71 = 39,616.70/x
  3. Step 3: Cross multiply
    69,831.11x = 96,371.71 × 39,616.70
  4. Step 4: Simplify right side
    69,831.11x = 3,817,928,542.66
  5. Step 5: Solve for x
    x = 3,817,928,542.66/69,831.11
  6. Step 6: Final answer
    x = 54,673.75

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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.