Home / 68,121.77-94,021.04-45,111.02

Finding the Fourth Proportional to 68,121.77, 94,021.04 and 45,111.02

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Solution

The fourth proportional to 68,121.77, 94,021.04 and 45,111.02 is: 62,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,121.77 : 94,021.04 = 45,111.02 : x
  2. Step 2: Convert to fraction form
    68,121.77/94,021.04 = 45,111.02/x
  3. Step 3: Cross multiply
    68,121.77x = 94,021.04 × 45,111.02
  4. Step 4: Simplify right side
    68,121.77x = 4,241,384,320.20
  5. Step 5: Solve for x
    x = 4,241,384,320.20/68,121.77
  6. Step 6: Final answer
    x = 62,261.81

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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.