Home / 57,231.68-85,852.98-17,778.20

Finding the Fourth Proportional to 57,231.68, 85,852.98 and 17,778.20

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Solution

The fourth proportional to 57,231.68, 85,852.98 and 17,778.20 is: 26,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.68 : 85,852.98 = 17,778.20 : x
  2. Step 2: Convert to fraction form
    57,231.68/85,852.98 = 17,778.20/x
  3. Step 3: Cross multiply
    57,231.68x = 85,852.98 × 17,778.20
  4. Step 4: Simplify right side
    57,231.68x = 1,526,311,019.77
  5. Step 5: Solve for x
    x = 1,526,311,019.77/57,231.68
  6. Step 6: Final answer
    x = 26,668.99

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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.