Home / 68,175.12-94,081.52-39,875.28

Finding the Fourth Proportional to 68,175.12, 94,081.52 and 39,875.28

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Solution

The fourth proportional to 68,175.12, 94,081.52 and 39,875.28 is: 55,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,175.12 : 94,081.52 = 39,875.28 : x
  2. Step 2: Convert to fraction form
    68,175.12/94,081.52 = 39,875.28/x
  3. Step 3: Cross multiply
    68,175.12x = 94,081.52 × 39,875.28
  4. Step 4: Simplify right side
    68,175.12x = 3,751,526,952.83
  5. Step 5: Solve for x
    x = 3,751,526,952.83/68,175.12
  6. Step 6: Final answer
    x = 55,027.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.