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Finding the Fourth Proportional to 64,134.70, 96,203.70 and 30,392.80

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Solution

The fourth proportional to 64,134.70, 96,203.70 and 30,392.80 is: 45,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,134.70 : 96,203.70 = 30,392.80 : x
  2. Step 2: Convert to fraction form
    64,134.70/96,203.70 = 30,392.80/x
  3. Step 3: Cross multiply
    64,134.70x = 96,203.70 × 30,392.80
  4. Step 4: Simplify right side
    64,134.70x = 2,923,899,572.85
  5. Step 5: Solve for x
    x = 2,923,899,572.85/64,134.70
  6. Step 6: Final answer
    x = 45,589.98

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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.