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Finding the Fourth Proportional to 68,360.85, 94,323.89 and 39,283.60

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Solution

The fourth proportional to 68,360.85, 94,323.89 and 39,283.60 is: 54,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,360.85 : 94,323.89 = 39,283.60 : x
  2. Step 2: Convert to fraction form
    68,360.85/94,323.89 = 39,283.60/x
  3. Step 3: Cross multiply
    68,360.85x = 94,323.89 × 39,283.60
  4. Step 4: Simplify right side
    68,360.85x = 3,705,381,965.20
  5. Step 5: Solve for x
    x = 3,705,381,965.20/68,360.85
  6. Step 6: Final answer
    x = 54,203.28

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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.