Home / 85,108.36-127,625.61-28,933.38

Finding the Fourth Proportional to 85,108.36, 127,625.61 and 28,933.38

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Solution

The fourth proportional to 85,108.36, 127,625.61 and 28,933.38 is: 43,387.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.36 : 127,625.61 = 28,933.38 : x
  2. Step 2: Convert to fraction form
    85,108.36/127,625.61 = 28,933.38/x
  3. Step 3: Cross multiply
    85,108.36x = 127,625.61 × 28,933.38
  4. Step 4: Simplify right side
    85,108.36x = 3,692,639,980.73
  5. Step 5: Solve for x
    x = 3,692,639,980.73/85,108.36
  6. Step 6: Final answer
    x = 43,387.51

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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.