Home / 213,631.05-320,464.88-55,859.25

Finding the Fourth Proportional to 213,631.05, 320,464.88 and 55,859.25

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Solution

The fourth proportional to 213,631.05, 320,464.88 and 55,859.25 is: 83,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,631.05 : 320,464.88 = 55,859.25 : x
  2. Step 2: Convert to fraction form
    213,631.05/320,464.88 = 55,859.25/x
  3. Step 3: Cross multiply
    213,631.05x = 320,464.88 × 55,859.25
  4. Step 4: Simplify right side
    213,631.05x = 17,900,927,568.84
  5. Step 5: Solve for x
    x = 17,900,927,568.84/213,631.05
  6. Step 6: Final answer
    x = 83,793.66

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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.