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Finding the Fourth Proportional to 85,089.97, 127,653.99 and 25,930.27

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Solution

The fourth proportional to 85,089.97, 127,653.99 and 25,930.27 is: 38,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.97 : 127,653.99 = 25,930.27 : x
  2. Step 2: Convert to fraction form
    85,089.97/127,653.99 = 25,930.27/x
  3. Step 3: Cross multiply
    85,089.97x = 127,653.99 × 25,930.27
  4. Step 4: Simplify right side
    85,089.97x = 3,310,102,427.28
  5. Step 5: Solve for x
    x = 3,310,102,427.28/85,089.97
  6. Step 6: Final answer
    x = 38,901.21

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1.5x scale

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.