Home / 57,722.20-86,502.30-45,896.20

Finding the Fourth Proportional to 57,722.20, 86,502.30 and 45,896.20

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Solution

The fourth proportional to 57,722.20, 86,502.30 and 45,896.20 is: 68,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.20 : 86,502.30 = 45,896.20 : x
  2. Step 2: Convert to fraction form
    57,722.20/86,502.30 = 45,896.20/x
  3. Step 3: Cross multiply
    57,722.20x = 86,502.30 × 45,896.20
  4. Step 4: Simplify right side
    57,722.20x = 3,970,126,861.26
  5. Step 5: Solve for x
    x = 3,970,126,861.26/57,722.20
  6. Step 6: Final answer
    x = 68,779.90

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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.