Home / 213,623.72-320,453.76-55,851.92

Finding the Fourth Proportional to 213,623.72, 320,453.76 and 55,851.92

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Solution

The fourth proportional to 213,623.72, 320,453.76 and 55,851.92 is: 83,782.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,623.72 : 320,453.76 = 55,851.92 : x
  2. Step 2: Convert to fraction form
    213,623.72/320,453.76 = 55,851.92/x
  3. Step 3: Cross multiply
    213,623.72x = 320,453.76 × 55,851.92
  4. Step 4: Simplify right side
    213,623.72x = 17,897,957,767.22
  5. Step 5: Solve for x
    x = 17,897,957,767.22/213,623.72
  6. Step 6: Final answer
    x = 83,782.63

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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.