Home / 55,007.20-82,491.60-28,703.20

Finding the Fourth Proportional to 55,007.20, 82,491.60 and 28,703.20

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Solution

The fourth proportional to 55,007.20, 82,491.60 and 28,703.20 is: 43,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007.20 : 82,491.60 = 28,703.20 : x
  2. Step 2: Convert to fraction form
    55,007.20/82,491.60 = 28,703.20/x
  3. Step 3: Cross multiply
    55,007.20x = 82,491.60 × 28,703.20
  4. Step 4: Simplify right side
    55,007.20x = 2,367,772,893.12
  5. Step 5: Solve for x
    x = 2,367,772,893.12/55,007.20
  6. Step 6: Final answer
    x = 43,044.78

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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.