Home / 55,086.66-76,019.36-31,217.88

Finding the Fourth Proportional to 55,086.66, 76,019.36 and 31,217.88

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Solution

The fourth proportional to 55,086.66, 76,019.36 and 31,217.88 is: 43,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086.66 : 76,019.36 = 31,217.88 : x
  2. Step 2: Convert to fraction form
    55,086.66/76,019.36 = 31,217.88/x
  3. Step 3: Cross multiply
    55,086.66x = 76,019.36 × 31,217.88
  4. Step 4: Simplify right side
    55,086.66x = 2,373,163,258.16
  5. Step 5: Solve for x
    x = 2,373,163,258.16/55,086.66
  6. Step 6: Final answer
    x = 43,080.54

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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.