Home / 213,821.80-320,734.05-56,048.89

Finding the Fourth Proportional to 213,821.80, 320,734.05 and 56,048.89

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Solution

The fourth proportional to 213,821.80, 320,734.05 and 56,048.89 is: 84,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,821.80 : 320,734.05 = 56,048.89 : x
  2. Step 2: Convert to fraction form
    213,821.80/320,734.05 = 56,048.89/x
  3. Step 3: Cross multiply
    213,821.80x = 320,734.05 × 56,048.89
  4. Step 4: Simplify right side
    213,821.80x = 17,976,787,487.70
  5. Step 5: Solve for x
    x = 17,976,787,487.70/213,821.80
  6. Step 6: Final answer
    x = 84,073.69

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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.