Home / 213,614.55-320,440.05-55,842.75

Finding the Fourth Proportional to 213,614.55, 320,440.05 and 55,842.75

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Solution

The fourth proportional to 213,614.55, 320,440.05 and 55,842.75 is: 83,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,614.55 : 320,440.05 = 55,842.75 : x
  2. Step 2: Convert to fraction form
    213,614.55/320,440.05 = 55,842.75/x
  3. Step 3: Cross multiply
    213,614.55x = 320,440.05 × 55,842.75
  4. Step 4: Simplify right side
    213,614.55x = 17,894,253,602.14
  5. Step 5: Solve for x
    x = 17,894,253,602.14/213,614.55
  6. Step 6: Final answer
    x = 83,768.89

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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.