Home / 64,285.89-96,433.35-19,906.80

Finding the Fourth Proportional to 64,285.89, 96,433.35 and 19,906.80

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Solution

The fourth proportional to 64,285.89, 96,433.35 and 19,906.80 is: 29,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,285.89 : 96,433.35 = 19,906.80 : x
  2. Step 2: Convert to fraction form
    64,285.89/96,433.35 = 19,906.80/x
  3. Step 3: Cross multiply
    64,285.89x = 96,433.35 × 19,906.80
  4. Step 4: Simplify right side
    64,285.89x = 1,919,679,411.78
  5. Step 5: Solve for x
    x = 1,919,679,411.78/64,285.89
  6. Step 6: Final answer
    x = 29,861.60

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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.