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Finding the Fourth Proportional to 71,563.56, 107,348.25 and 18,256.92

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Solution

The fourth proportional to 71,563.56, 107,348.25 and 18,256.92 is: 27,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,563.56 : 107,348.25 = 18,256.92 : x
  2. Step 2: Convert to fraction form
    71,563.56/107,348.25 = 18,256.92/x
  3. Step 3: Cross multiply
    71,563.56x = 107,348.25 × 18,256.92
  4. Step 4: Simplify right side
    71,563.56x = 1,959,848,412.39
  5. Step 5: Solve for x
    x = 1,959,848,412.39/71,563.56
  6. Step 6: Final answer
    x = 27,386.12

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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.