Home / 213,579.30-320,344.65-55,823.70

Finding the Fourth Proportional to 213,579.30, 320,344.65 and 55,823.70

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Solution

The fourth proportional to 213,579.30, 320,344.65 and 55,823.70 is: 83,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,579.30 : 320,344.65 = 55,823.70 : x
  2. Step 2: Convert to fraction form
    213,579.30/320,344.65 = 55,823.70/x
  3. Step 3: Cross multiply
    213,579.30x = 320,344.65 × 55,823.70
  4. Step 4: Simplify right side
    213,579.30x = 17,882,823,638.21
  5. Step 5: Solve for x
    x = 17,882,823,638.21/213,579.30
  6. Step 6: Final answer
    x = 83,729.20

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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.