Home / 68,266.37-102,319.10-30,782.56

Finding the Fourth Proportional to 68,266.37, 102,319.10 and 30,782.56

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Solution

The fourth proportional to 68,266.37, 102,319.10 and 30,782.56 is: 46,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.37 : 102,319.10 = 30,782.56 : x
  2. Step 2: Convert to fraction form
    68,266.37/102,319.10 = 30,782.56/x
  3. Step 3: Cross multiply
    68,266.37x = 102,319.10 × 30,782.56
  4. Step 4: Simplify right side
    68,266.37x = 3,149,643,656.05
  5. Step 5: Solve for x
    x = 3,149,643,656.05/68,266.37
  6. Step 6: Final answer
    x = 46,137.56

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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.