Home / 81,330.69-112,305.62-51,166.49

Finding the Fourth Proportional to 81,330.69, 112,305.62 and 51,166.49

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Solution

The fourth proportional to 81,330.69, 112,305.62 and 51,166.49 is: 70,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,330.69 : 112,305.62 = 51,166.49 : x
  2. Step 2: Convert to fraction form
    81,330.69/112,305.62 = 51,166.49/x
  3. Step 3: Cross multiply
    81,330.69x = 112,305.62 × 51,166.49
  4. Step 4: Simplify right side
    81,330.69x = 5,746,284,382.67
  5. Step 5: Solve for x
    x = 5,746,284,382.67/81,330.69
  6. Step 6: Final answer
    x = 70,653.33

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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.