Home / 81,064.32-111,879.36-47,533.44

Finding the Fourth Proportional to 81,064.32, 111,879.36 and 47,533.44

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Solution

The fourth proportional to 81,064.32, 111,879.36 and 47,533.44 is: 65,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,064.32 : 111,879.36 = 47,533.44 : x
  2. Step 2: Convert to fraction form
    81,064.32/111,879.36 = 47,533.44/x
  3. Step 3: Cross multiply
    81,064.32x = 111,879.36 × 47,533.44
  4. Step 4: Simplify right side
    81,064.32x = 5,318,010,845.80
  5. Step 5: Solve for x
    x = 5,318,010,845.80/81,064.32
  6. Step 6: Final answer
    x = 65,602.36

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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.