Home / 211,831.92-317,747.70-54,060.36

Finding the Fourth Proportional to 211,831.92, 317,747.70 and 54,060.36

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Solution

The fourth proportional to 211,831.92, 317,747.70 and 54,060.36 is: 81,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,831.92 : 317,747.70 = 54,060.36 : x
  2. Step 2: Convert to fraction form
    211,831.92/317,747.70 = 54,060.36/x
  3. Step 3: Cross multiply
    211,831.92x = 317,747.70 × 54,060.36
  4. Step 4: Simplify right side
    211,831.92x = 17,177,555,051.17
  5. Step 5: Solve for x
    x = 17,177,555,051.17/211,831.92
  6. Step 6: Final answer
    x = 81,090.49

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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.