Home / 81,289.44-112,183.79-45,477.32

Finding the Fourth Proportional to 81,289.44, 112,183.79 and 45,477.32

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Solution

The fourth proportional to 81,289.44, 112,183.79 and 45,477.32 is: 62,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.44 : 112,183.79 = 45,477.32 : x
  2. Step 2: Convert to fraction form
    81,289.44/112,183.79 = 45,477.32/x
  3. Step 3: Cross multiply
    81,289.44x = 112,183.79 × 45,477.32
  4. Step 4: Simplify right side
    81,289.44x = 5,101,817,328.34
  5. Step 5: Solve for x
    x = 5,101,817,328.34/81,289.44
  6. Step 6: Final answer
    x = 62,761.13

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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.