Home / 57,505.20-86,356.20-31,261.20

Finding the Fourth Proportional to 57,505.20, 86,356.20 and 31,261.20

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Solution

The fourth proportional to 57,505.20, 86,356.20 and 31,261.20 is: 46,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,505.20 : 86,356.20 = 31,261.20 : x
  2. Step 2: Convert to fraction form
    57,505.20/86,356.20 = 31,261.20/x
  3. Step 3: Cross multiply
    57,505.20x = 86,356.20 × 31,261.20
  4. Step 4: Simplify right side
    57,505.20x = 2,699,598,439.44
  5. Step 5: Solve for x
    x = 2,699,598,439.44/57,505.20
  6. Step 6: Final answer
    x = 46,945.29

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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.