Home / 53,786.88-80,669.66-51,119.74

Finding the Fourth Proportional to 53,786.88, 80,669.66 and 51,119.74

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Solution

The fourth proportional to 53,786.88, 80,669.66 and 51,119.74 is: 76,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,786.88 : 80,669.66 = 51,119.74 : x
  2. Step 2: Convert to fraction form
    53,786.88/80,669.66 = 51,119.74/x
  3. Step 3: Cross multiply
    53,786.88x = 80,669.66 × 51,119.74
  4. Step 4: Simplify right side
    53,786.88x = 4,123,812,045.09
  5. Step 5: Solve for x
    x = 4,123,812,045.09/53,786.88
  6. Step 6: Final answer
    x = 76,669.48

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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.