Home / 68,146.50-102,296.42-28,736.76

Finding the Fourth Proportional to 68,146.50, 102,296.42 and 28,736.76

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Solution

The fourth proportional to 68,146.50, 102,296.42 and 28,736.76 is: 43,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.50 : 102,296.42 = 28,736.76 : x
  2. Step 2: Convert to fraction form
    68,146.50/102,296.42 = 28,736.76/x
  3. Step 3: Cross multiply
    68,146.50x = 102,296.42 × 28,736.76
  4. Step 4: Simplify right side
    68,146.50x = 2,939,667,670.40
  5. Step 5: Solve for x
    x = 2,939,667,670.40/68,146.50
  6. Step 6: Final answer
    x = 43,137.47

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1.5x scale

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.