Home / 81,194.22-112,039.47-47,196.54

Finding the Fourth Proportional to 81,194.22, 112,039.47 and 47,196.54

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Solution

The fourth proportional to 81,194.22, 112,039.47 and 47,196.54 is: 65,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,194.22 : 112,039.47 = 47,196.54 : x
  2. Step 2: Convert to fraction form
    81,194.22/112,039.47 = 47,196.54/x
  3. Step 3: Cross multiply
    81,194.22x = 112,039.47 × 47,196.54
  4. Step 4: Simplify right side
    81,194.22x = 5,287,875,327.43
  5. Step 5: Solve for x
    x = 5,287,875,327.43/81,194.22
  6. Step 6: Final answer
    x = 65,126.25

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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.