Home / 49,640.19-74,418.39-21,539.09

Finding the Fourth Proportional to 49,640.19, 74,418.39 and 21,539.09

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Solution

The fourth proportional to 49,640.19, 74,418.39 and 21,539.09 is: 32,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,640.19 : 74,418.39 = 21,539.09 : x
  2. Step 2: Convert to fraction form
    49,640.19/74,418.39 = 21,539.09/x
  3. Step 3: Cross multiply
    49,640.19x = 74,418.39 × 21,539.09
  4. Step 4: Simplify right side
    49,640.19x = 1,602,904,027.77
  5. Step 5: Solve for x
    x = 1,602,904,027.77/49,640.19
  6. Step 6: Final answer
    x = 32,290.45

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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.