Home / 85,370.38-117,869.43-55,228.66

Finding the Fourth Proportional to 85,370.38, 117,869.43 and 55,228.66

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Solution

The fourth proportional to 85,370.38, 117,869.43 and 55,228.66 is: 76,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.38 : 117,869.43 = 55,228.66 : x
  2. Step 2: Convert to fraction form
    85,370.38/117,869.43 = 55,228.66/x
  3. Step 3: Cross multiply
    85,370.38x = 117,869.43 × 55,228.66
  4. Step 4: Simplify right side
    85,370.38x = 6,509,770,673.86
  5. Step 5: Solve for x
    x = 6,509,770,673.86/85,370.38
  6. Step 6: Final answer
    x = 76,253.27

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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.