Home / 56,619.54-84,929.40-19,179.90

Finding the Fourth Proportional to 56,619.54, 84,929.40 and 19,179.90

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Solution

The fourth proportional to 56,619.54, 84,929.40 and 19,179.90 is: 28,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.54 : 84,929.40 = 19,179.90 : x
  2. Step 2: Convert to fraction form
    56,619.54/84,929.40 = 19,179.90/x
  3. Step 3: Cross multiply
    56,619.54x = 84,929.40 × 19,179.90
  4. Step 4: Simplify right side
    56,619.54x = 1,628,937,399.06
  5. Step 5: Solve for x
    x = 1,628,937,399.06/56,619.54
  6. Step 6: Final answer
    x = 28,769.88

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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.