Home / 81,176.37-112,021.29-45,366.68

Finding the Fourth Proportional to 81,176.37, 112,021.29 and 45,366.68

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Solution

The fourth proportional to 81,176.37, 112,021.29 and 45,366.68 is: 62,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176.37 : 112,021.29 = 45,366.68 : x
  2. Step 2: Convert to fraction form
    81,176.37/112,021.29 = 45,366.68/x
  3. Step 3: Cross multiply
    81,176.37x = 112,021.29 × 45,366.68
  4. Step 4: Simplify right side
    81,176.37x = 5,082,033,456.51
  5. Step 5: Solve for x
    x = 5,082,033,456.51/81,176.37
  6. Step 6: Final answer
    x = 62,604.84

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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.