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Finding the Fourth Proportional to 85,334.82, 128,059.36 and 35,414.96

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Solution

The fourth proportional to 85,334.82, 128,059.36 and 35,414.96 is: 53,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,334.82 : 128,059.36 = 35,414.96 : x
  2. Step 2: Convert to fraction form
    85,334.82/128,059.36 = 35,414.96/x
  3. Step 3: Cross multiply
    85,334.82x = 128,059.36 × 35,414.96
  4. Step 4: Simplify right side
    85,334.82x = 4,535,216,383.19
  5. Step 5: Solve for x
    x = 4,535,216,383.19/85,334.82
  6. Step 6: Final answer
    x = 53,146.14

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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.