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Finding the Fourth Proportional to 64,642.64, 96,963.96 and 20,273.27

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Solution

The fourth proportional to 64,642.64, 96,963.96 and 20,273.27 is: 30,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,642.64 : 96,963.96 = 20,273.27 : x
  2. Step 2: Convert to fraction form
    64,642.64/96,963.96 = 20,273.27/x
  3. Step 3: Cross multiply
    64,642.64x = 96,963.96 × 20,273.27
  4. Step 4: Simplify right side
    64,642.64x = 1,965,776,056.53
  5. Step 5: Solve for x
    x = 1,965,776,056.53/64,642.64
  6. Step 6: Final answer
    x = 30,409.90

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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.