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Finding the Fourth Proportional to 54,416.87, 81,617.03 and 18,392.86

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Solution

The fourth proportional to 54,416.87, 81,617.03 and 18,392.86 is: 27,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,416.87 : 81,617.03 = 18,392.86 : x
  2. Step 2: Convert to fraction form
    54,416.87/81,617.03 = 18,392.86/x
  3. Step 3: Cross multiply
    54,416.87x = 81,617.03 × 18,392.86
  4. Step 4: Simplify right side
    54,416.87x = 1,501,170,606.41
  5. Step 5: Solve for x
    x = 1,501,170,606.41/54,416.87
  6. Step 6: Final answer
    x = 27,586.49

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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.