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Finding the Fourth Proportional to 68,774.79, 94,907.03 and 38,561.85

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Solution

The fourth proportional to 68,774.79, 94,907.03 and 38,561.85 is: 53,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,774.79 : 94,907.03 = 38,561.85 : x
  2. Step 2: Convert to fraction form
    68,774.79/94,907.03 = 38,561.85/x
  3. Step 3: Cross multiply
    68,774.79x = 94,907.03 × 38,561.85
  4. Step 4: Simplify right side
    68,774.79x = 3,659,790,276.67
  5. Step 5: Solve for x
    x = 3,659,790,276.67/68,774.79
  6. Step 6: Final answer
    x = 53,214.12

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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.