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Finding the Fourth Proportional to 68,603.71, 94,643.07 and 40,296.64

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Solution

The fourth proportional to 68,603.71, 94,643.07 and 40,296.64 is: 55,591.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,603.71 : 94,643.07 = 40,296.64 : x
  2. Step 2: Convert to fraction form
    68,603.71/94,643.07 = 40,296.64/x
  3. Step 3: Cross multiply
    68,603.71x = 94,643.07 × 40,296.64
  4. Step 4: Simplify right side
    68,603.71x = 3,813,797,720.28
  5. Step 5: Solve for x
    x = 3,813,797,720.28/68,603.71
  6. Step 6: Final answer
    x = 55,591.71

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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.