Home / 76,645.44-105,769.94-42,653.36

Finding the Fourth Proportional to 76,645.44, 105,769.94 and 42,653.36

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Solution

The fourth proportional to 76,645.44, 105,769.94 and 42,653.36 is: 58,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,645.44 : 105,769.94 = 42,653.36 : x
  2. Step 2: Convert to fraction form
    76,645.44/105,769.94 = 42,653.36/x
  3. Step 3: Cross multiply
    76,645.44x = 105,769.94 × 42,653.36
  4. Step 4: Simplify right side
    76,645.44x = 4,511,442,910.77
  5. Step 5: Solve for x
    x = 4,511,442,910.77/76,645.44
  6. Step 6: Final answer
    x = 58,861.20

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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.