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Finding the Fourth Proportional to 64,449.95, 96,674.92 and 20,080.28

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Solution

The fourth proportional to 64,449.95, 96,674.92 and 20,080.28 is: 30,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,449.95 : 96,674.92 = 20,080.28 : x
  2. Step 2: Convert to fraction form
    64,449.95/96,674.92 = 20,080.28/x
  3. Step 3: Cross multiply
    64,449.95x = 96,674.92 × 20,080.28
  4. Step 4: Simplify right side
    64,449.95x = 1,941,259,654.06
  5. Step 5: Solve for x
    x = 1,941,259,654.06/64,449.95
  6. Step 6: Final answer
    x = 30,120.42

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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.