Home / 64,586.96-96,828.16-20,190.86

Finding the Fourth Proportional to 64,586.96, 96,828.16 and 20,190.86

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Solution

The fourth proportional to 64,586.96, 96,828.16 and 20,190.86 is: 30,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,586.96 : 96,828.16 = 20,190.86 : x
  2. Step 2: Convert to fraction form
    64,586.96/96,828.16 = 20,190.86/x
  3. Step 3: Cross multiply
    64,586.96x = 96,828.16 × 20,190.86
  4. Step 4: Simplify right side
    64,586.96x = 1,955,043,847.86
  5. Step 5: Solve for x
    x = 1,955,043,847.86/64,586.96
  6. Step 6: Final answer
    x = 30,269.95

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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.