Home / 85,369.38-117,868.05-55,227.66

Finding the Fourth Proportional to 85,369.38, 117,868.05 and 55,227.66

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Solution

The fourth proportional to 85,369.38, 117,868.05 and 55,227.66 is: 76,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,369.38 : 117,868.05 = 55,227.66 : x
  2. Step 2: Convert to fraction form
    85,369.38/117,868.05 = 55,227.66/x
  3. Step 3: Cross multiply
    85,369.38x = 117,868.05 × 55,227.66
  4. Step 4: Simplify right side
    85,369.38x = 6,509,576,590.26
  5. Step 5: Solve for x
    x = 6,509,576,590.26/85,369.38
  6. Step 6: Final answer
    x = 76,251.89

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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.