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Finding the Fourth Proportional to 55,080, 82,645.92 and 28,797.12

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Solution

The fourth proportional to 55,080, 82,645.92 and 28,797.12 is: 43,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,080 : 82,645.92 = 28,797.12 : x
  2. Step 2: Convert to fraction form
    55,080/82,645.92 = 28,797.12/x
  3. Step 3: Cross multiply
    55,080x = 82,645.92 × 28,797.12
  4. Step 4: Simplify right side
    55,080x = 2,379,964,475.75
  5. Step 5: Solve for x
    x = 2,379,964,475.75/55,080
  6. Step 6: Final answer
    x = 43,209.23

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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.