Home / 55,278.11-76,274.56-31,396.07

Finding the Fourth Proportional to 55,278.11, 76,274.56 and 31,396.07

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Solution

The fourth proportional to 55,278.11, 76,274.56 and 31,396.07 is: 43,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.11 : 76,274.56 = 31,396.07 : x
  2. Step 2: Convert to fraction form
    55,278.11/76,274.56 = 31,396.07/x
  3. Step 3: Cross multiply
    55,278.11x = 76,274.56 × 31,396.07
  4. Step 4: Simplify right side
    55,278.11x = 2,394,721,654.91
  5. Step 5: Solve for x
    x = 2,394,721,654.91/55,278.11
  6. Step 6: Final answer
    x = 43,321.34

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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.