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Finding the Fourth Proportional to 68,682, 94,688.11 and 58,717.48

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Solution

The fourth proportional to 68,682, 94,688.11 and 58,717.48 is: 80,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,682 : 94,688.11 = 58,717.48 : x
  2. Step 2: Convert to fraction form
    68,682/94,688.11 = 58,717.48/x
  3. Step 3: Cross multiply
    68,682x = 94,688.11 × 58,717.48
  4. Step 4: Simplify right side
    68,682x = 5,559,847,058.37
  5. Step 5: Solve for x
    x = 5,559,847,058.37/68,682
  6. Step 6: Final answer
    x = 80,950.57

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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.