Home / 213,485.86-320,217.81-63,727.39

Finding the Fourth Proportional to 213,485.86, 320,217.81 and 63,727.39

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Solution

The fourth proportional to 213,485.86, 320,217.81 and 63,727.39 is: 95,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,485.86 : 320,217.81 = 63,727.39 : x
  2. Step 2: Convert to fraction form
    213,485.86/320,217.81 = 63,727.39/x
  3. Step 3: Cross multiply
    213,485.86x = 320,217.81 × 63,727.39
  4. Step 4: Simplify right side
    213,485.86x = 20,406,645,424.11
  5. Step 5: Solve for x
    x = 20,406,645,424.11/213,485.86
  6. Step 6: Final answer
    x = 95,587.81

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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.