Home / 82,395.12-113,601.60-67,272.24

Finding the Fourth Proportional to 82,395.12, 113,601.60 and 67,272.24

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Solution

The fourth proportional to 82,395.12, 113,601.60 and 67,272.24 is: 92,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,395.12 : 113,601.60 = 67,272.24 : x
  2. Step 2: Convert to fraction form
    82,395.12/113,601.60 = 67,272.24/x
  3. Step 3: Cross multiply
    82,395.12x = 113,601.60 × 67,272.24
  4. Step 4: Simplify right side
    82,395.12x = 7,642,234,099.58
  5. Step 5: Solve for x
    x = 7,642,234,099.58/82,395.12
  6. Step 6: Final answer
    x = 92,751.05

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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.