Home / 64,310.96-96,480.12-19,938.80

Finding the Fourth Proportional to 64,310.96, 96,480.12 and 19,938.80

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Solution

The fourth proportional to 64,310.96, 96,480.12 and 19,938.80 is: 29,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,310.96 : 96,480.12 = 19,938.80 : x
  2. Step 2: Convert to fraction form
    64,310.96/96,480.12 = 19,938.80/x
  3. Step 3: Cross multiply
    64,310.96x = 96,480.12 × 19,938.80
  4. Step 4: Simplify right side
    64,310.96x = 1,923,697,816.66
  5. Step 5: Solve for x
    x = 1,923,697,816.66/64,310.96
  6. Step 6: Final answer
    x = 29,912.44

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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.