Home / 85,106.11-127,647.70-35,179.28

Finding the Fourth Proportional to 85,106.11, 127,647.70 and 35,179.28

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Solution

The fourth proportional to 85,106.11, 127,647.70 and 35,179.28 is: 52,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,106.11 : 127,647.70 = 35,179.28 : x
  2. Step 2: Convert to fraction form
    85,106.11/127,647.70 = 35,179.28/x
  3. Step 3: Cross multiply
    85,106.11x = 127,647.70 × 35,179.28
  4. Step 4: Simplify right side
    85,106.11x = 4,490,553,932.15
  5. Step 5: Solve for x
    x = 4,490,553,932.15/85,106.11
  6. Step 6: Final answer
    x = 52,764.18

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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.