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Finding the Fourth Proportional to 85,265.92, 117,717.44 and 75,808.32

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Solution

The fourth proportional to 85,265.92, 117,717.44 and 75,808.32 is: 104,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,265.92 : 117,717.44 = 75,808.32 : x
  2. Step 2: Convert to fraction form
    85,265.92/117,717.44 = 75,808.32/x
  3. Step 3: Cross multiply
    85,265.92x = 117,717.44 × 75,808.32
  4. Step 4: Simplify right side
    85,265.92x = 8,923,961,361.10
  5. Step 5: Solve for x
    x = 8,923,961,361.10/85,265.92
  6. Step 6: Final answer
    x = 104,660.35

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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.