Home / 213,595.38-320,382.14-55,817.91

Finding the Fourth Proportional to 213,595.38, 320,382.14 and 55,817.91

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Solution

The fourth proportional to 213,595.38, 320,382.14 and 55,817.91 is: 83,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,595.38 : 320,382.14 = 55,817.91 : x
  2. Step 2: Convert to fraction form
    213,595.38/320,382.14 = 55,817.91/x
  3. Step 3: Cross multiply
    213,595.38x = 320,382.14 × 55,817.91
  4. Step 4: Simplify right side
    213,595.38x = 17,883,061,177.04
  5. Step 5: Solve for x
    x = 17,883,061,177.04/213,595.38
  6. Step 6: Final answer
    x = 83,724.01

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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.