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Finding the Fourth Proportional to 68,658.30, 94,757.58 and 38,445.30

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Solution

The fourth proportional to 68,658.30, 94,757.58 and 38,445.30 is: 53,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,658.30 : 94,757.58 = 38,445.30 : x
  2. Step 2: Convert to fraction form
    68,658.30/94,757.58 = 38,445.30/x
  3. Step 3: Cross multiply
    68,658.30x = 94,757.58 × 38,445.30
  4. Step 4: Simplify right side
    68,658.30x = 3,642,983,590.37
  5. Step 5: Solve for x
    x = 3,642,983,590.37/68,658.30
  6. Step 6: Final answer
    x = 53,059.62

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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.