Home / 77,145.76-106,458.24-43,612.48

Finding the Fourth Proportional to 77,145.76, 106,458.24 and 43,612.48

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Solution

The fourth proportional to 77,145.76, 106,458.24 and 43,612.48 is: 60,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145.76 : 106,458.24 = 43,612.48 : x
  2. Step 2: Convert to fraction form
    77,145.76/106,458.24 = 43,612.48/x
  3. Step 3: Cross multiply
    77,145.76x = 106,458.24 × 43,612.48
  4. Step 4: Simplify right side
    77,145.76x = 4,642,907,862.84
  5. Step 5: Solve for x
    x = 4,642,907,862.84/77,145.76
  6. Step 6: Final answer
    x = 60,183.58

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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.