Home / 74,287.26-111,434.67-21,697.20

Finding the Fourth Proportional to 74,287.26, 111,434.67 and 21,697.20

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Solution

The fourth proportional to 74,287.26, 111,434.67 and 21,697.20 is: 32,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,287.26 : 111,434.67 = 21,697.20 : x
  2. Step 2: Convert to fraction form
    74,287.26/111,434.67 = 21,697.20/x
  3. Step 3: Cross multiply
    74,287.26x = 111,434.67 × 21,697.20
  4. Step 4: Simplify right side
    74,287.26x = 2,417,820,321.92
  5. Step 5: Solve for x
    x = 2,417,820,321.92/74,287.26
  6. Step 6: Final answer
    x = 32,546.90

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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.