Home / 41,123.09-61,688.49-11,540.79

Finding the Fourth Proportional to 41,123.09, 61,688.49 and 11,540.79

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Solution

The fourth proportional to 41,123.09, 61,688.49 and 11,540.79 is: 17,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,123.09 : 61,688.49 = 11,540.79 : x
  2. Step 2: Convert to fraction form
    41,123.09/61,688.49 = 11,540.79/x
  3. Step 3: Cross multiply
    41,123.09x = 61,688.49 × 11,540.79
  4. Step 4: Simplify right side
    41,123.09x = 711,933,908.51
  5. Step 5: Solve for x
    x = 711,933,908.51/41,123.09
  6. Step 6: Final answer
    x = 17,312.27

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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.