Home / 68,807.67-94,954.55-40,121.79

Finding the Fourth Proportional to 68,807.67, 94,954.55 and 40,121.79

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Solution

The fourth proportional to 68,807.67, 94,954.55 and 40,121.79 is: 55,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,807.67 : 94,954.55 = 40,121.79 : x
  2. Step 2: Convert to fraction form
    68,807.67/94,954.55 = 40,121.79/x
  3. Step 3: Cross multiply
    68,807.67x = 94,954.55 × 40,121.79
  4. Step 4: Simplify right side
    68,807.67x = 3,809,746,514.64
  5. Step 5: Solve for x
    x = 3,809,746,514.64/68,807.67
  6. Step 6: Final answer
    x = 55,368.05

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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.