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Finding the Fourth Proportional to 85,079.56, 127,586.22 and 35,167.72

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Solution

The fourth proportional to 85,079.56, 127,586.22 and 35,167.72 is: 52,737.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,079.56 : 127,586.22 = 35,167.72 : x
  2. Step 2: Convert to fraction form
    85,079.56/127,586.22 = 35,167.72/x
  3. Step 3: Cross multiply
    85,079.56x = 127,586.22 × 35,167.72
  4. Step 4: Simplify right side
    85,079.56x = 4,486,916,460.82
  5. Step 5: Solve for x
    x = 4,486,916,460.82/85,079.56
  6. Step 6: Final answer
    x = 52,737.89

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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.