Home / 72,342.54-108,531-30,199.26

Finding the Fourth Proportional to 72,342.54, 108,531 and 30,199.26

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Solution

The fourth proportional to 72,342.54, 108,531 and 30,199.26 is: 45,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,342.54 : 108,531 = 30,199.26 : x
  2. Step 2: Convert to fraction form
    72,342.54/108,531 = 30,199.26/x
  3. Step 3: Cross multiply
    72,342.54x = 108,531 × 30,199.26
  4. Step 4: Simplify right side
    72,342.54x = 3,277,555,887.06
  5. Step 5: Solve for x
    x = 3,277,555,887.06/72,342.54
  6. Step 6: Final answer
    x = 45,306.07

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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.