Home / 76,190.63-105,137.34-43,902.31

Finding the Fourth Proportional to 76,190.63, 105,137.34 and 43,902.31

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Solution

The fourth proportional to 76,190.63, 105,137.34 and 43,902.31 is: 60,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,190.63 : 105,137.34 = 43,902.31 : x
  2. Step 2: Convert to fraction form
    76,190.63/105,137.34 = 43,902.31/x
  3. Step 3: Cross multiply
    76,190.63x = 105,137.34 × 43,902.31
  4. Step 4: Simplify right side
    76,190.63x = 4,615,771,348.06
  5. Step 5: Solve for x
    x = 4,615,771,348.06/76,190.63
  6. Step 6: Final answer
    x = 60,581.88

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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.