Home / 85,110.32-127,665.42-38,308.52

Finding the Fourth Proportional to 85,110.32, 127,665.42 and 38,308.52

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Solution

The fourth proportional to 85,110.32, 127,665.42 and 38,308.52 is: 57,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.32 : 127,665.42 = 38,308.52 : x
  2. Step 2: Convert to fraction form
    85,110.32/127,665.42 = 38,308.52/x
  3. Step 3: Cross multiply
    85,110.32x = 127,665.42 × 38,308.52
  4. Step 4: Simplify right side
    85,110.32x = 4,890,673,295.38
  5. Step 5: Solve for x
    x = 4,890,673,295.38/85,110.32
  6. Step 6: Final answer
    x = 57,462.75

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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.