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Finding the Fourth Proportional to 57,245.80, 85,852.29 and 19,290.94

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Solution

The fourth proportional to 57,245.80, 85,852.29 and 19,290.94 is: 28,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.80 : 85,852.29 = 19,290.94 : x
  2. Step 2: Convert to fraction form
    57,245.80/85,852.29 = 19,290.94/x
  3. Step 3: Cross multiply
    57,245.80x = 85,852.29 × 19,290.94
  4. Step 4: Simplify right side
    57,245.80x = 1,656,170,945.99
  5. Step 5: Solve for x
    x = 1,656,170,945.99/57,245.80
  6. Step 6: Final answer
    x = 28,930.87

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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.