Home / 84,940.20-127,410.30-40,653.45

Finding the Fourth Proportional to 84,940.20, 127,410.30 and 40,653.45

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Solution

The fourth proportional to 84,940.20, 127,410.30 and 40,653.45 is: 60,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.20 : 127,410.30 = 40,653.45 : x
  2. Step 2: Convert to fraction form
    84,940.20/127,410.30 = 40,653.45/x
  3. Step 3: Cross multiply
    84,940.20x = 127,410.30 × 40,653.45
  4. Step 4: Simplify right side
    84,940.20x = 5,179,668,260.54
  5. Step 5: Solve for x
    x = 5,179,668,260.54/84,940.20
  6. Step 6: Final answer
    x = 60,980.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.