Home / 55,170.71-76,137.06-31,300.97

Finding the Fourth Proportional to 55,170.71, 76,137.06 and 31,300.97

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Solution

The fourth proportional to 55,170.71, 76,137.06 and 31,300.97 is: 43,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,170.71 : 76,137.06 = 31,300.97 : x
  2. Step 2: Convert to fraction form
    55,170.71/76,137.06 = 31,300.97/x
  3. Step 3: Cross multiply
    55,170.71x = 76,137.06 × 31,300.97
  4. Step 4: Simplify right side
    55,170.71x = 2,383,163,830.95
  5. Step 5: Solve for x
    x = 2,383,163,830.95/55,170.71
  6. Step 6: Final answer
    x = 43,196.18

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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.