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Finding the Fourth Proportional to 68,668, 94,750.88 and 38,454.64

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Solution

The fourth proportional to 68,668, 94,750.88 and 38,454.64 is: 53,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,668 : 94,750.88 = 38,454.64 : x
  2. Step 2: Convert to fraction form
    68,668/94,750.88 = 38,454.64/x
  3. Step 3: Cross multiply
    68,668x = 94,750.88 × 38,454.64
  4. Step 4: Simplify right side
    68,668x = 3,643,610,980.08
  5. Step 5: Solve for x
    x = 3,643,610,980.08/68,668
  6. Step 6: Final answer
    x = 53,061.27

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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.