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Finding the Fourth Proportional to 68,324.40, 94,324.80 and 47,217.12

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Solution

The fourth proportional to 68,324.40, 94,324.80 and 47,217.12 is: 65,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,324.40 : 94,324.80 = 47,217.12 : x
  2. Step 2: Convert to fraction form
    68,324.40/94,324.80 = 47,217.12/x
  3. Step 3: Cross multiply
    68,324.40x = 94,324.80 × 47,217.12
  4. Step 4: Simplify right side
    68,324.40x = 4,453,745,400.58
  5. Step 5: Solve for x
    x = 4,453,745,400.58/68,324.40
  6. Step 6: Final answer
    x = 65,185.28

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1.5x scale

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.