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Finding the Fourth Proportional to 64,615.57, 96,923.26 and 20,245.77

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Solution

The fourth proportional to 64,615.57, 96,923.26 and 20,245.77 is: 30,368.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,615.57 : 96,923.26 = 20,245.77 : x
  2. Step 2: Convert to fraction form
    64,615.57/96,923.26 = 20,245.77/x
  3. Step 3: Cross multiply
    64,615.57x = 96,923.26 × 20,245.77
  4. Step 4: Simplify right side
    64,615.57x = 1,962,286,054.92
  5. Step 5: Solve for x
    x = 1,962,286,054.92/64,615.57
  6. Step 6: Final answer
    x = 30,368.63

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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.