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Finding the Fourth Proportional to 84,930.30, 127,395.09 and 21,750.30

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Solution

The fourth proportional to 84,930.30, 127,395.09 and 21,750.30 is: 32,625.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,930.30 : 127,395.09 = 21,750.30 : x
  2. Step 2: Convert to fraction form
    84,930.30/127,395.09 = 21,750.30/x
  3. Step 3: Cross multiply
    84,930.30x = 127,395.09 × 21,750.30
  4. Step 4: Simplify right side
    84,930.30x = 2,770,881,426.03
  5. Step 5: Solve for x
    x = 2,770,881,426.03/84,930.30
  6. Step 6: Final answer
    x = 32,625.36

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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.