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Finding the Fourth Proportional to 68,166.95, 94,069.50 and 39,490.52

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Solution

The fourth proportional to 68,166.95, 94,069.50 and 39,490.52 is: 54,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,166.95 : 94,069.50 = 39,490.52 : x
  2. Step 2: Convert to fraction form
    68,166.95/94,069.50 = 39,490.52/x
  3. Step 3: Cross multiply
    68,166.95x = 94,069.50 × 39,490.52
  4. Step 4: Simplify right side
    68,166.95x = 3,714,853,471.14
  5. Step 5: Solve for x
    x = 3,714,853,471.14/68,166.95
  6. Step 6: Final answer
    x = 54,496.40

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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.