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Finding the Fourth Proportional to 48,339.88, 72,520.48 and 19,876.74

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Solution

The fourth proportional to 48,339.88, 72,520.48 and 19,876.74 is: 29,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,339.88 : 72,520.48 = 19,876.74 : x
  2. Step 2: Convert to fraction form
    48,339.88/72,520.48 = 19,876.74/x
  3. Step 3: Cross multiply
    48,339.88x = 72,520.48 × 19,876.74
  4. Step 4: Simplify right side
    48,339.88x = 1,441,470,725.64
  5. Step 5: Solve for x
    x = 1,441,470,725.64/48,339.88
  6. Step 6: Final answer
    x = 29,819.49

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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.