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Finding the Fourth Proportional to 64,448.46, 96,659.84 and 21,749.72

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Solution

The fourth proportional to 64,448.46, 96,659.84 and 21,749.72 is: 32,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,448.46 : 96,659.84 = 21,749.72 : x
  2. Step 2: Convert to fraction form
    64,448.46/96,659.84 = 21,749.72/x
  3. Step 3: Cross multiply
    64,448.46x = 96,659.84 × 21,749.72
  4. Step 4: Simplify right side
    64,448.46x = 2,102,323,863.20
  5. Step 5: Solve for x
    x = 2,102,323,863.20/64,448.46
  6. Step 6: Final answer
    x = 32,620.23

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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.