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Finding the Fourth Proportional to 57,305.80, 85,954.74 and 17,859.16

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Solution

The fourth proportional to 57,305.80, 85,954.74 and 17,859.16 is: 26,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,305.80 : 85,954.74 = 17,859.16 : x
  2. Step 2: Convert to fraction form
    57,305.80/85,954.74 = 17,859.16/x
  3. Step 3: Cross multiply
    57,305.80x = 85,954.74 × 17,859.16
  4. Step 4: Simplify right side
    57,305.80x = 1,535,079,454.42
  5. Step 5: Solve for x
    x = 1,535,079,454.42/57,305.80
  6. Step 6: Final answer
    x = 26,787.51

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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.