Home / 57,243.28-85,840.62-30,940.96

Finding the Fourth Proportional to 57,243.28, 85,840.62 and 30,940.96

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Solution

The fourth proportional to 57,243.28, 85,840.62 and 30,940.96 is: 46,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.28 : 85,840.62 = 30,940.96 : x
  2. Step 2: Convert to fraction form
    57,243.28/85,840.62 = 30,940.96/x
  3. Step 3: Cross multiply
    57,243.28x = 85,840.62 × 30,940.96
  4. Step 4: Simplify right side
    57,243.28x = 2,655,991,189.80
  5. Step 5: Solve for x
    x = 2,655,991,189.80/57,243.28
  6. Step 6: Final answer
    x = 46,398.31

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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.