Home / 74,974.20-112,389.30-43,351.80

Finding the Fourth Proportional to 74,974.20, 112,389.30 and 43,351.80

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Solution

The fourth proportional to 74,974.20, 112,389.30 and 43,351.80 is: 64,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,974.20 : 112,389.30 = 43,351.80 : x
  2. Step 2: Convert to fraction form
    74,974.20/112,389.30 = 43,351.80/x
  3. Step 3: Cross multiply
    74,974.20x = 112,389.30 × 43,351.80
  4. Step 4: Simplify right side
    74,974.20x = 4,872,278,455.74
  5. Step 5: Solve for x
    x = 4,872,278,455.74/74,974.20
  6. Step 6: Final answer
    x = 64,986.07

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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.