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Finding the Fourth Proportional to 70,112.86, 105,169.47 and 27,996.37

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Solution

The fourth proportional to 70,112.86, 105,169.47 and 27,996.37 is: 41,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,112.86 : 105,169.47 = 27,996.37 : x
  2. Step 2: Convert to fraction form
    70,112.86/105,169.47 = 27,996.37/x
  3. Step 3: Cross multiply
    70,112.86x = 105,169.47 × 27,996.37
  4. Step 4: Simplify right side
    70,112.86x = 2,944,363,026.91
  5. Step 5: Solve for x
    x = 2,944,363,026.91/70,112.86
  6. Step 6: Final answer
    x = 41,994.62

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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.