Home / 74,932.20-112,398.30-45,334.80

Finding the Fourth Proportional to 74,932.20, 112,398.30 and 45,334.80

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Solution

The fourth proportional to 74,932.20, 112,398.30 and 45,334.80 is: 68,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.20 : 112,398.30 = 45,334.80 : x
  2. Step 2: Convert to fraction form
    74,932.20/112,398.30 = 45,334.80/x
  3. Step 3: Cross multiply
    74,932.20x = 112,398.30 × 45,334.80
  4. Step 4: Simplify right side
    74,932.20x = 5,095,554,450.84
  5. Step 5: Solve for x
    x = 5,095,554,450.84/74,932.20
  6. Step 6: Final answer
    x = 68,002.20

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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.