Home / 42,135.98-63,179.52-19,949.17

Finding the Fourth Proportional to 42,135.98, 63,179.52 and 19,949.17

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Solution

The fourth proportional to 42,135.98, 63,179.52 and 19,949.17 is: 29,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.98 : 63,179.52 = 19,949.17 : x
  2. Step 2: Convert to fraction form
    42,135.98/63,179.52 = 19,949.17/x
  3. Step 3: Cross multiply
    42,135.98x = 63,179.52 × 19,949.17
  4. Step 4: Simplify right side
    42,135.98x = 1,260,378,985.00
  5. Step 5: Solve for x
    x = 1,260,378,985.00/42,135.98
  6. Step 6: Final answer
    x = 29,912.18

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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.