Home / 57,090.65-85,644.17-17,650.85

Finding the Fourth Proportional to 57,090.65, 85,644.17 and 17,650.85

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Solution

The fourth proportional to 57,090.65, 85,644.17 and 17,650.85 is: 26,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090.65 : 85,644.17 = 17,650.85 : x
  2. Step 2: Convert to fraction form
    57,090.65/85,644.17 = 17,650.85/x
  3. Step 3: Cross multiply
    57,090.65x = 85,644.17 × 17,650.85
  4. Step 4: Simplify right side
    57,090.65x = 1,511,691,881.57
  5. Step 5: Solve for x
    x = 1,511,691,881.57/57,090.65
  6. Step 6: Final answer
    x = 26,478.80

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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.