Home / 81,289.32-112,183.61-45,477.19

Finding the Fourth Proportional to 81,289.32, 112,183.61 and 45,477.19

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Solution

The fourth proportional to 81,289.32, 112,183.61 and 45,477.19 is: 62,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.32 : 112,183.61 = 45,477.19 : x
  2. Step 2: Convert to fraction form
    81,289.32/112,183.61 = 45,477.19/x
  3. Step 3: Cross multiply
    81,289.32x = 112,183.61 × 45,477.19
  4. Step 4: Simplify right side
    81,289.32x = 5,101,795,460.55
  5. Step 5: Solve for x
    x = 5,101,795,460.55/81,289.32
  6. Step 6: Final answer
    x = 62,760.96

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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.