Home / 57,828.30-86,756.31-19,876.92

Finding the Fourth Proportional to 57,828.30, 86,756.31 and 19,876.92

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Solution

The fourth proportional to 57,828.30, 86,756.31 and 19,876.92 is: 29,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,828.30 : 86,756.31 = 19,876.92 : x
  2. Step 2: Convert to fraction form
    57,828.30/86,756.31 = 19,876.92/x
  3. Step 3: Cross multiply
    57,828.30x = 86,756.31 × 19,876.92
  4. Step 4: Simplify right side
    57,828.30x = 1,724,448,233.37
  5. Step 5: Solve for x
    x = 1,724,448,233.37/57,828.30
  6. Step 6: Final answer
    x = 29,820.14

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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.