Home / 57,241.21-78,990.06-31,745.58

Finding the Fourth Proportional to 57,241.21, 78,990.06 and 31,745.58

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Solution

The fourth proportional to 57,241.21, 78,990.06 and 31,745.58 is: 43,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,241.21 : 78,990.06 = 31,745.58 : x
  2. Step 2: Convert to fraction form
    57,241.21/78,990.06 = 31,745.58/x
  3. Step 3: Cross multiply
    57,241.21x = 78,990.06 × 31,745.58
  4. Step 4: Simplify right side
    57,241.21x = 2,507,585,268.93
  5. Step 5: Solve for x
    x = 2,507,585,268.93/57,241.21
  6. Step 6: Final answer
    x = 43,807.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.