Home / 85,121.88-127,671.37-35,195.10

Finding the Fourth Proportional to 85,121.88, 127,671.37 and 35,195.10

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Solution

The fourth proportional to 85,121.88, 127,671.37 and 35,195.10 is: 52,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,121.88 : 127,671.37 = 35,195.10 : x
  2. Step 2: Convert to fraction form
    85,121.88/127,671.37 = 35,195.10/x
  3. Step 3: Cross multiply
    85,121.88x = 127,671.37 × 35,195.10
  4. Step 4: Simplify right side
    85,121.88x = 4,493,406,634.29
  5. Step 5: Solve for x
    x = 4,493,406,634.29/85,121.88
  6. Step 6: Final answer
    x = 52,787.92

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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.