Home / 58,455.36-87,644.52-20,996.64

Finding the Fourth Proportional to 58,455.36, 87,644.52 and 20,996.64

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Solution

The fourth proportional to 58,455.36, 87,644.52 and 20,996.64 is: 31,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,455.36 : 87,644.52 = 20,996.64 : x
  2. Step 2: Convert to fraction form
    58,455.36/87,644.52 = 20,996.64/x
  3. Step 3: Cross multiply
    58,455.36x = 87,644.52 × 20,996.64
  4. Step 4: Simplify right side
    58,455.36x = 1,840,240,434.41
  5. Step 5: Solve for x
    x = 1,840,240,434.41/58,455.36
  6. Step 6: Final answer
    x = 31,481.12

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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.