Home / 213,635.40-320,425.26-55,876.02

Finding the Fourth Proportional to 213,635.40, 320,425.26 and 55,876.02

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Solution

The fourth proportional to 213,635.40, 320,425.26 and 55,876.02 is: 83,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,635.40 : 320,425.26 = 55,876.02 : x
  2. Step 2: Convert to fraction form
    213,635.40/320,425.26 = 55,876.02/x
  3. Step 3: Cross multiply
    213,635.40x = 320,425.26 × 55,876.02
  4. Step 4: Simplify right side
    213,635.40x = 17,904,088,236.27
  5. Step 5: Solve for x
    x = 17,904,088,236.27/213,635.40
  6. Step 6: Final answer
    x = 83,806.75

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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.