Home / 74,619.40-111,929.22-30,247.06

Finding the Fourth Proportional to 74,619.40, 111,929.22 and 30,247.06

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Solution

The fourth proportional to 74,619.40, 111,929.22 and 30,247.06 is: 45,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.40 : 111,929.22 = 30,247.06 : x
  2. Step 2: Convert to fraction form
    74,619.40/111,929.22 = 30,247.06/x
  3. Step 3: Cross multiply
    74,619.40x = 111,929.22 × 30,247.06
  4. Step 4: Simplify right side
    74,619.40x = 3,385,529,833.09
  5. Step 5: Solve for x
    x = 3,385,529,833.09/74,619.40
  6. Step 6: Final answer
    x = 45,370.64

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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.