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Finding the Fourth Proportional to 68,000.80, 101,952.60 and 30,530.20

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Solution

The fourth proportional to 68,000.80, 101,952.60 and 30,530.20 is: 45,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,000.80 : 101,952.60 = 30,530.20 : x
  2. Step 2: Convert to fraction form
    68,000.80/101,952.60 = 30,530.20/x
  3. Step 3: Cross multiply
    68,000.80x = 101,952.60 × 30,530.20
  4. Step 4: Simplify right side
    68,000.80x = 3,112,633,268.52
  5. Step 5: Solve for x
    x = 3,112,633,268.52/68,000.80
  6. Step 6: Final answer
    x = 45,773.48

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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.