Home / 82,205.04-113,443.02-57,069.12

Finding the Fourth Proportional to 82,205.04, 113,443.02 and 57,069.12

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Solution

The fourth proportional to 82,205.04, 113,443.02 and 57,069.12 is: 78,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,205.04 : 113,443.02 = 57,069.12 : x
  2. Step 2: Convert to fraction form
    82,205.04/113,443.02 = 57,069.12/x
  3. Step 3: Cross multiply
    82,205.04x = 113,443.02 × 57,069.12
  4. Step 4: Simplify right side
    82,205.04x = 6,474,093,321.54
  5. Step 5: Solve for x
    x = 6,474,093,321.54/82,205.04
  6. Step 6: Final answer
    x = 78,755.43

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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.