Home / 85,100.11-127,640.43-22,775.47

Finding the Fourth Proportional to 85,100.11, 127,640.43 and 22,775.47

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Solution

The fourth proportional to 85,100.11, 127,640.43 and 22,775.47 is: 34,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100.11 : 127,640.43 = 22,775.47 : x
  2. Step 2: Convert to fraction form
    85,100.11/127,640.43 = 22,775.47/x
  3. Step 3: Cross multiply
    85,100.11x = 127,640.43 × 22,775.47
  4. Step 4: Simplify right side
    85,100.11x = 2,907,070,784.25
  5. Step 5: Solve for x
    x = 2,907,070,784.25/85,100.11
  6. Step 6: Final answer
    x = 34,160.60

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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.