Home / 58,388.24-87,619.61-20,947.48

Finding the Fourth Proportional to 58,388.24, 87,619.61 and 20,947.48

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Solution

The fourth proportional to 58,388.24, 87,619.61 and 20,947.48 is: 31,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,388.24 : 87,619.61 = 20,947.48 : x
  2. Step 2: Convert to fraction form
    58,388.24/87,619.61 = 20,947.48/x
  3. Step 3: Cross multiply
    58,388.24x = 87,619.61 × 20,947.48
  4. Step 4: Simplify right side
    58,388.24x = 1,835,410,201.59
  5. Step 5: Solve for x
    x = 1,835,410,201.59/58,388.24
  6. Step 6: Final answer
    x = 31,434.59

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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.