Home / 68,808.67-94,955.93-40,122.79

Finding the Fourth Proportional to 68,808.67, 94,955.93 and 40,122.79

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Solution

The fourth proportional to 68,808.67, 94,955.93 and 40,122.79 is: 55,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808.67 : 94,955.93 = 40,122.79 : x
  2. Step 2: Convert to fraction form
    68,808.67/94,955.93 = 40,122.79/x
  3. Step 3: Cross multiply
    68,808.67x = 94,955.93 × 40,122.79
  4. Step 4: Simplify right side
    68,808.67x = 3,809,896,838.64
  5. Step 5: Solve for x
    x = 3,809,896,838.64/68,808.67
  6. Step 6: Final answer
    x = 55,369.43

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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.