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Finding the Fourth Proportional to 85,249.56, 117,644.90 and 49,460.88

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Solution

The fourth proportional to 85,249.56, 117,644.90 and 49,460.88 is: 68,256.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,249.56 : 117,644.90 = 49,460.88 : x
  2. Step 2: Convert to fraction form
    85,249.56/117,644.90 = 49,460.88/x
  3. Step 3: Cross multiply
    85,249.56x = 117,644.90 × 49,460.88
  4. Step 4: Simplify right side
    85,249.56x = 5,818,820,281.51
  5. Step 5: Solve for x
    x = 5,818,820,281.51/85,249.56
  6. Step 6: Final answer
    x = 68,256.31

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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.