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Finding the Fourth Proportional to 53,865, 80,812.89 and 18,334.13

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Solution

The fourth proportional to 53,865, 80,812.89 and 18,334.13 is: 27,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865 : 80,812.89 = 18,334.13 : x
  2. Step 2: Convert to fraction form
    53,865/80,812.89 = 18,334.13/x
  3. Step 3: Cross multiply
    53,865x = 80,812.89 × 18,334.13
  4. Step 4: Simplify right side
    53,865x = 1,481,633,626.87
  5. Step 5: Solve for x
    x = 1,481,633,626.87/53,865
  6. Step 6: Final answer
    x = 27,506.43

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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.