Home / 213,631.30-320,465.24-55,859.50

Finding the Fourth Proportional to 213,631.30, 320,465.24 and 55,859.50

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Solution

The fourth proportional to 213,631.30, 320,465.24 and 55,859.50 is: 83,794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,631.30 : 320,465.24 = 55,859.50 : x
  2. Step 2: Convert to fraction form
    213,631.30/320,465.24 = 55,859.50/x
  3. Step 3: Cross multiply
    213,631.30x = 320,465.24 × 55,859.50
  4. Step 4: Simplify right side
    213,631.30x = 17,901,028,073.78
  5. Step 5: Solve for x
    x = 17,901,028,073.78/213,631.30
  6. Step 6: Final answer
    x = 83,794.03

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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.