Home / 48,541.36-72,838.20-20,480.86

Finding the Fourth Proportional to 48,541.36, 72,838.20 and 20,480.86

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Solution

The fourth proportional to 48,541.36, 72,838.20 and 20,480.86 is: 30,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,541.36 : 72,838.20 = 20,480.86 : x
  2. Step 2: Convert to fraction form
    48,541.36/72,838.20 = 20,480.86/x
  3. Step 3: Cross multiply
    48,541.36x = 72,838.20 × 20,480.86
  4. Step 4: Simplify right side
    48,541.36x = 1,491,789,029.50
  5. Step 5: Solve for x
    x = 1,491,789,029.50/48,541.36
  6. Step 6: Final answer
    x = 30,732.33

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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.