Home / 64,856.20-97,169.10-53,105.80

Finding the Fourth Proportional to 64,856.20, 97,169.10 and 53,105.80

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Solution

The fourth proportional to 64,856.20, 97,169.10 and 53,105.80 is: 79,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,856.20 : 97,169.10 = 53,105.80 : x
  2. Step 2: Convert to fraction form
    64,856.20/97,169.10 = 53,105.80/x
  3. Step 3: Cross multiply
    64,856.20x = 97,169.10 × 53,105.80
  4. Step 4: Simplify right side
    64,856.20x = 5,160,242,790.78
  5. Step 5: Solve for x
    x = 5,160,242,790.78/64,856.20
  6. Step 6: Final answer
    x = 79,564.37

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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.