Home / 213,629.05-320,461.87-55,857.25

Finding the Fourth Proportional to 213,629.05, 320,461.87 and 55,857.25

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Solution

The fourth proportional to 213,629.05, 320,461.87 and 55,857.25 is: 83,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,629.05 : 320,461.87 = 55,857.25 : x
  2. Step 2: Convert to fraction form
    213,629.05/320,461.87 = 55,857.25/x
  3. Step 3: Cross multiply
    213,629.05x = 320,461.87 × 55,857.25
  4. Step 4: Simplify right side
    213,629.05x = 17,900,118,788.06
  5. Step 5: Solve for x
    x = 17,900,118,788.06/213,629.05
  6. Step 6: Final answer
    x = 83,790.66

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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.