Home / 213,336.72-320,004.96-55,564.80

Finding the Fourth Proportional to 213,336.72, 320,004.96 and 55,564.80

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Solution

The fourth proportional to 213,336.72, 320,004.96 and 55,564.80 is: 83,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,336.72 : 320,004.96 = 55,564.80 : x
  2. Step 2: Convert to fraction form
    213,336.72/320,004.96 = 55,564.80/x
  3. Step 3: Cross multiply
    213,336.72x = 320,004.96 × 55,564.80
  4. Step 4: Simplify right side
    213,336.72x = 17,781,011,601.41
  5. Step 5: Solve for x
    x = 17,781,011,601.41/213,336.72
  6. Step 6: Final answer
    x = 83,347.17

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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.