Home / 47,361.78-65,344.05-31,449.42

Finding the Fourth Proportional to 47,361.78, 65,344.05 and 31,449.42

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Solution

The fourth proportional to 47,361.78, 65,344.05 and 31,449.42 is: 43,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,361.78 : 65,344.05 = 31,449.42 : x
  2. Step 2: Convert to fraction form
    47,361.78/65,344.05 = 31,449.42/x
  3. Step 3: Cross multiply
    47,361.78x = 65,344.05 × 31,449.42
  4. Step 4: Simplify right side
    47,361.78x = 2,055,032,472.95
  5. Step 5: Solve for x
    x = 2,055,032,472.95/47,361.78
  6. Step 6: Final answer
    x = 43,390.10

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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.