Home / 76,736.45-105,901.16-43,204.61

Finding the Fourth Proportional to 76,736.45, 105,901.16 and 43,204.61

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Solution

The fourth proportional to 76,736.45, 105,901.16 and 43,204.61 is: 59,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,736.45 : 105,901.16 = 43,204.61 : x
  2. Step 2: Convert to fraction form
    76,736.45/105,901.16 = 43,204.61/x
  3. Step 3: Cross multiply
    76,736.45x = 105,901.16 × 43,204.61
  4. Step 4: Simplify right side
    76,736.45x = 4,575,417,570.82
  5. Step 5: Solve for x
    x = 4,575,417,570.82/76,736.45
  6. Step 6: Final answer
    x = 59,625.09

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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.