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Finding the Fourth Proportional to 68,331.84, 94,299.84 and 40,038.72

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Solution

The fourth proportional to 68,331.84, 94,299.84 and 40,038.72 is: 55,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,331.84 : 94,299.84 = 40,038.72 : x
  2. Step 2: Convert to fraction form
    68,331.84/94,299.84 = 40,038.72/x
  3. Step 3: Cross multiply
    68,331.84x = 94,299.84 × 40,038.72
  4. Step 4: Simplify right side
    68,331.84x = 3,775,644,889.80
  5. Step 5: Solve for x
    x = 3,775,644,889.80/68,331.84
  6. Step 6: Final answer
    x = 55,254.55

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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.