Home / 81,455.22-112,511.43-73,494.54

Finding the Fourth Proportional to 81,455.22, 112,511.43 and 73,494.54

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Solution

The fourth proportional to 81,455.22, 112,511.43 and 73,494.54 is: 101,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,455.22 : 112,511.43 = 73,494.54 : x
  2. Step 2: Convert to fraction form
    81,455.22/112,511.43 = 73,494.54/x
  3. Step 3: Cross multiply
    81,455.22x = 112,511.43 × 73,494.54
  4. Step 4: Simplify right side
    81,455.22x = 8,268,975,792.59
  5. Step 5: Solve for x
    x = 8,268,975,792.59/81,455.22
  6. Step 6: Final answer
    x = 101,515.60

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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.