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Finding the Fourth Proportional to 68,651.52, 94,728.09 and 38,438.10

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Solution

The fourth proportional to 68,651.52, 94,728.09 and 38,438.10 is: 53,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.52 : 94,728.09 = 38,438.10 : x
  2. Step 2: Convert to fraction form
    68,651.52/94,728.09 = 38,438.10/x
  3. Step 3: Cross multiply
    68,651.52x = 94,728.09 × 38,438.10
  4. Step 4: Simplify right side
    68,651.52x = 3,641,167,796.23
  5. Step 5: Solve for x
    x = 3,641,167,796.23/68,651.52
  6. Step 6: Final answer
    x = 53,038.41

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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.