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Finding the Fourth Proportional to 64,122.76, 96,185.76 and 30,380.86

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Solution

The fourth proportional to 64,122.76, 96,185.76 and 30,380.86 is: 45,572.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,122.76 : 96,185.76 = 30,380.86 : x
  2. Step 2: Convert to fraction form
    64,122.76/96,185.76 = 30,380.86/x
  3. Step 3: Cross multiply
    64,122.76x = 96,185.76 × 30,380.86
  4. Step 4: Simplify right side
    64,122.76x = 2,922,206,108.55
  5. Step 5: Solve for x
    x = 2,922,206,108.55/64,122.76
  6. Step 6: Final answer
    x = 45,572.06

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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.