Home / 68,419.28-102,626.66-30,979.35

Finding the Fourth Proportional to 68,419.28, 102,626.66 and 30,979.35

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Solution

The fourth proportional to 68,419.28, 102,626.66 and 30,979.35 is: 46,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,419.28 : 102,626.66 = 30,979.35 : x
  2. Step 2: Convert to fraction form
    68,419.28/102,626.66 = 30,979.35/x
  3. Step 3: Cross multiply
    68,419.28x = 102,626.66 × 30,979.35
  4. Step 4: Simplify right side
    68,419.28x = 3,179,307,296.92
  5. Step 5: Solve for x
    x = 3,179,307,296.92/68,419.28
  6. Step 6: Final answer
    x = 46,468.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.