Home / 55,548.88-76,660.84-31,680.16

Finding the Fourth Proportional to 55,548.88, 76,660.84 and 31,680.16

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Solution

The fourth proportional to 55,548.88, 76,660.84 and 31,680.16 is: 43,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,548.88 : 76,660.84 = 31,680.16 : x
  2. Step 2: Convert to fraction form
    55,548.88/76,660.84 = 31,680.16/x
  3. Step 3: Cross multiply
    55,548.88x = 76,660.84 × 31,680.16
  4. Step 4: Simplify right side
    55,548.88x = 2,428,627,676.93
  5. Step 5: Solve for x
    x = 2,428,627,676.93/55,548.88
  6. Step 6: Final answer
    x = 43,720.55

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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.