Home / 85,664.91-118,201.17-55,446.03

Finding the Fourth Proportional to 85,664.91, 118,201.17 and 55,446.03

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Solution

The fourth proportional to 85,664.91, 118,201.17 and 55,446.03 is: 76,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,664.91 : 118,201.17 = 55,446.03 : x
  2. Step 2: Convert to fraction form
    85,664.91/118,201.17 = 55,446.03/x
  3. Step 3: Cross multiply
    85,664.91x = 118,201.17 × 55,446.03
  4. Step 4: Simplify right side
    85,664.91x = 6,553,785,617.86
  5. Step 5: Solve for x
    x = 6,553,785,617.86/85,664.91
  6. Step 6: Final answer
    x = 76,504.90

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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.