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Finding the Fourth Proportional to 55,270.80, 82,729.80 and 43,606.80

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Solution

The fourth proportional to 55,270.80, 82,729.80 and 43,606.80 is: 65,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,270.80 : 82,729.80 = 43,606.80 : x
  2. Step 2: Convert to fraction form
    55,270.80/82,729.80 = 43,606.80/x
  3. Step 3: Cross multiply
    55,270.80x = 82,729.80 × 43,606.80
  4. Step 4: Simplify right side
    55,270.80x = 3,607,581,842.64
  5. Step 5: Solve for x
    x = 3,607,581,842.64/55,270.80
  6. Step 6: Final answer
    x = 65,271.03

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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.