Home / 74,521.24-111,754.82-40,812.31

Finding the Fourth Proportional to 74,521.24, 111,754.82 and 40,812.31

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Solution

The fourth proportional to 74,521.24, 111,754.82 and 40,812.31 is: 61,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.24 : 111,754.82 = 40,812.31 : x
  2. Step 2: Convert to fraction form
    74,521.24/111,754.82 = 40,812.31/x
  3. Step 3: Cross multiply
    74,521.24x = 111,754.82 × 40,812.31
  4. Step 4: Simplify right side
    74,521.24x = 4,560,971,884.85
  5. Step 5: Solve for x
    x = 4,560,971,884.85/74,521.24
  6. Step 6: Final answer
    x = 61,203.65

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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.