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Finding the Fourth Proportional to 85,079.87, 127,619.84 and 35,105.06

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Solution

The fourth proportional to 85,079.87, 127,619.84 and 35,105.06 is: 52,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,079.87 : 127,619.84 = 35,105.06 : x
  2. Step 2: Convert to fraction form
    85,079.87/127,619.84 = 35,105.06/x
  3. Step 3: Cross multiply
    85,079.87x = 127,619.84 × 35,105.06
  4. Step 4: Simplify right side
    85,079.87x = 4,480,101,326.77
  5. Step 5: Solve for x
    x = 4,480,101,326.77/85,079.87
  6. Step 6: Final answer
    x = 52,657.60

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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.