Home / 81,161.39-112,000.62-45,351.60

Finding the Fourth Proportional to 81,161.39, 112,000.62 and 45,351.60

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Solution

The fourth proportional to 81,161.39, 112,000.62 and 45,351.60 is: 62,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,161.39 : 112,000.62 = 45,351.60 : x
  2. Step 2: Convert to fraction form
    81,161.39/112,000.62 = 45,351.60/x
  3. Step 3: Cross multiply
    81,161.39x = 112,000.62 × 45,351.60
  4. Step 4: Simplify right side
    81,161.39x = 5,079,407,068.06
  5. Step 5: Solve for x
    x = 5,079,407,068.06/81,161.39
  6. Step 6: Final answer
    x = 62,584.03

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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.