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Finding the Fourth Proportional to 71,612.31, 98,827.79 and 48,998.73

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Solution

The fourth proportional to 71,612.31, 98,827.79 and 48,998.73 is: 67,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612.31 : 98,827.79 = 48,998.73 : x
  2. Step 2: Convert to fraction form
    71,612.31/98,827.79 = 48,998.73/x
  3. Step 3: Cross multiply
    71,612.31x = 98,827.79 × 48,998.73
  4. Step 4: Simplify right side
    71,612.31x = 4,842,436,198.71
  5. Step 5: Solve for x
    x = 4,842,436,198.71/71,612.31
  6. Step 6: Final answer
    x = 67,620.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.