Home / 49,830.78-74,755.39-14,290.62

Finding the Fourth Proportional to 49,830.78, 74,755.39 and 14,290.62

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Solution

The fourth proportional to 49,830.78, 74,755.39 and 14,290.62 is: 21,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,830.78 : 74,755.39 = 14,290.62 : x
  2. Step 2: Convert to fraction form
    49,830.78/74,755.39 = 14,290.62/x
  3. Step 3: Cross multiply
    49,830.78x = 74,755.39 × 14,290.62
  4. Step 4: Simplify right side
    49,830.78x = 1,068,300,871.44
  5. Step 5: Solve for x
    x = 1,068,300,871.44/49,830.78
  6. Step 6: Final answer
    x = 21,438.57

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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.