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Finding the Fourth Proportional to 85,889.52, 128,846.43 and 33,304.32

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Solution

The fourth proportional to 85,889.52, 128,846.43 and 33,304.32 is: 49,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.52 : 128,846.43 = 33,304.32 : x
  2. Step 2: Convert to fraction form
    85,889.52/128,846.43 = 33,304.32/x
  3. Step 3: Cross multiply
    85,889.52x = 128,846.43 × 33,304.32
  4. Step 4: Simplify right side
    85,889.52x = 4,291,142,735.58
  5. Step 5: Solve for x
    x = 4,291,142,735.58/85,889.52
  6. Step 6: Final answer
    x = 49,961.19

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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.