Home / 86,282.84-129,418.02-27,135.43

Finding the Fourth Proportional to 86,282.84, 129,418.02 and 27,135.43

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Solution

The fourth proportional to 86,282.84, 129,418.02 and 27,135.43 is: 40,701.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,282.84 : 129,418.02 = 27,135.43 : x
  2. Step 2: Convert to fraction form
    86,282.84/129,418.02 = 27,135.43/x
  3. Step 3: Cross multiply
    86,282.84x = 129,418.02 × 27,135.43
  4. Step 4: Simplify right side
    86,282.84x = 3,511,813,622.45
  5. Step 5: Solve for x
    x = 3,511,813,622.45/86,282.84
  6. Step 6: Final answer
    x = 40,701.18

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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.