Home / 68,215.14-94,143.24-39,920.82

Finding the Fourth Proportional to 68,215.14, 94,143.24 and 39,920.82

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Solution

The fourth proportional to 68,215.14, 94,143.24 and 39,920.82 is: 55,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,215.14 : 94,143.24 = 39,920.82 : x
  2. Step 2: Convert to fraction form
    68,215.14/94,143.24 = 39,920.82/x
  3. Step 3: Cross multiply
    68,215.14x = 94,143.24 × 39,920.82
  4. Step 4: Simplify right side
    68,215.14x = 3,758,275,338.26
  5. Step 5: Solve for x
    x = 3,758,275,338.26/68,215.14
  6. Step 6: Final answer
    x = 55,094.45

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1.5x scale

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.