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Finding the Fourth Proportional to 68,393.60, 94,345.24 and 40,093.84

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Solution

The fourth proportional to 68,393.60, 94,345.24 and 40,093.84 is: 55,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,393.60 : 94,345.24 = 40,093.84 : x
  2. Step 2: Convert to fraction form
    68,393.60/94,345.24 = 40,093.84/x
  3. Step 3: Cross multiply
    68,393.60x = 94,345.24 × 40,093.84
  4. Step 4: Simplify right side
    68,393.60x = 3,782,662,957.32
  5. Step 5: Solve for x
    x = 3,782,662,957.32/68,393.60
  6. Step 6: Final answer
    x = 55,307.26

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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.