Home / 86,243.84-129,222.21-30,052.97

Finding the Fourth Proportional to 86,243.84, 129,222.21 and 30,052.97

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Solution

The fourth proportional to 86,243.84, 129,222.21 and 30,052.97 is: 45,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,243.84 : 129,222.21 = 30,052.97 : x
  2. Step 2: Convert to fraction form
    86,243.84/129,222.21 = 30,052.97/x
  3. Step 3: Cross multiply
    86,243.84x = 129,222.21 × 30,052.97
  4. Step 4: Simplify right side
    86,243.84x = 3,883,511,151.63
  5. Step 5: Solve for x
    x = 3,883,511,151.63/86,243.84
  6. Step 6: Final answer
    x = 45,029.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.