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Finding the Fourth Proportional to 68,137, 94,030.50 and 38,329

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Solution

The fourth proportional to 68,137, 94,030.50 and 38,329 is: 52,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,137 : 94,030.50 = 38,329 : x
  2. Step 2: Convert to fraction form
    68,137/94,030.50 = 38,329/x
  3. Step 3: Cross multiply
    68,137x = 94,030.50 × 38,329
  4. Step 4: Simplify right side
    68,137x = 3,604,095,034.50
  5. Step 5: Solve for x
    x = 3,604,095,034.50/68,137
  6. Step 6: Final answer
    x = 52,894.83

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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.