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Finding the Fourth Proportional to 84,963.36, 117,369.36 and 68,079.72

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Solution

The fourth proportional to 84,963.36, 117,369.36 and 68,079.72 is: 94,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,963.36 : 117,369.36 = 68,079.72 : x
  2. Step 2: Convert to fraction form
    84,963.36/117,369.36 = 68,079.72/x
  3. Step 3: Cross multiply
    84,963.36x = 117,369.36 × 68,079.72
  4. Step 4: Simplify right side
    84,963.36x = 7,990,473,165.38
  5. Step 5: Solve for x
    x = 7,990,473,165.38/84,963.36
  6. Step 6: Final answer
    x = 94,046.11

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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.