Home / 213,377.06-320,083.88-55,605.26

Finding the Fourth Proportional to 213,377.06, 320,083.88 and 55,605.26

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Solution

The fourth proportional to 213,377.06, 320,083.88 and 55,605.26 is: 83,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,377.06 : 320,083.88 = 55,605.26 : x
  2. Step 2: Convert to fraction form
    213,377.06/320,083.88 = 55,605.26/x
  3. Step 3: Cross multiply
    213,377.06x = 320,083.88 × 55,605.26
  4. Step 4: Simplify right side
    213,377.06x = 17,798,345,490.76
  5. Step 5: Solve for x
    x = 17,798,345,490.76/213,377.06
  6. Step 6: Final answer
    x = 83,412.65

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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.