Home / 85,701.26-128,635.02-41,359.22

Finding the Fourth Proportional to 85,701.26, 128,635.02 and 41,359.22

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Solution

The fourth proportional to 85,701.26, 128,635.02 and 41,359.22 is: 62,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,701.26 : 128,635.02 = 41,359.22 : x
  2. Step 2: Convert to fraction form
    85,701.26/128,635.02 = 41,359.22/x
  3. Step 3: Cross multiply
    85,701.26x = 128,635.02 × 41,359.22
  4. Step 4: Simplify right side
    85,701.26x = 5,320,244,091.88
  5. Step 5: Solve for x
    x = 5,320,244,091.88/85,701.26
  6. Step 6: Final answer
    x = 62,078.95

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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.