Home / 81,865.44-112,974.48-48,333.60

Finding the Fourth Proportional to 81,865.44, 112,974.48 and 48,333.60

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Solution

The fourth proportional to 81,865.44, 112,974.48 and 48,333.60 is: 66,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,865.44 : 112,974.48 = 48,333.60 : x
  2. Step 2: Convert to fraction form
    81,865.44/112,974.48 = 48,333.60/x
  3. Step 3: Cross multiply
    81,865.44x = 112,974.48 × 48,333.60
  4. Step 4: Simplify right side
    81,865.44x = 5,460,463,326.53
  5. Step 5: Solve for x
    x = 5,460,463,326.53/81,865.44
  6. Step 6: Final answer
    x = 66,700.47

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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.