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Finding the Fourth Proportional to 48,339.80, 72,480.54 and 21,680.94

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Solution

The fourth proportional to 48,339.80, 72,480.54 and 21,680.94 is: 32,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,339.80 : 72,480.54 = 21,680.94 : x
  2. Step 2: Convert to fraction form
    48,339.80/72,480.54 = 21,680.94/x
  3. Step 3: Cross multiply
    48,339.80x = 72,480.54 × 21,680.94
  4. Step 4: Simplify right side
    48,339.80x = 1,571,446,238.91
  5. Step 5: Solve for x
    x = 1,571,446,238.91/48,339.80
  6. Step 6: Final answer
    x = 32,508.33

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1.5x scale

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.