Home / 49,398.12-74,079.90-21,310.56

Finding the Fourth Proportional to 49,398.12, 74,079.90 and 21,310.56

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Solution

The fourth proportional to 49,398.12, 74,079.90 and 21,310.56 is: 31,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,398.12 : 74,079.90 = 21,310.56 : x
  2. Step 2: Convert to fraction form
    49,398.12/74,079.90 = 21,310.56/x
  3. Step 3: Cross multiply
    49,398.12x = 74,079.90 × 21,310.56
  4. Step 4: Simplify right side
    49,398.12x = 1,578,684,153.74
  5. Step 5: Solve for x
    x = 1,578,684,153.74/49,398.12
  6. Step 6: Final answer
    x = 31,958.39

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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.