Home / 55,087.66-76,020.74-31,218.88

Finding the Fourth Proportional to 55,087.66, 76,020.74 and 31,218.88

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Solution

The fourth proportional to 55,087.66, 76,020.74 and 31,218.88 is: 43,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.66 : 76,020.74 = 31,218.88 : x
  2. Step 2: Convert to fraction form
    55,087.66/76,020.74 = 31,218.88/x
  3. Step 3: Cross multiply
    55,087.66x = 76,020.74 × 31,218.88
  4. Step 4: Simplify right side
    55,087.66x = 2,373,282,359.57
  5. Step 5: Solve for x
    x = 2,373,282,359.57/55,087.66
  6. Step 6: Final answer
    x = 43,081.92

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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.