Home / 58,223.88-87,336.36-20,785.68

Finding the Fourth Proportional to 58,223.88, 87,336.36 and 20,785.68

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Solution

The fourth proportional to 58,223.88, 87,336.36 and 20,785.68 is: 31,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,223.88 : 87,336.36 = 20,785.68 : x
  2. Step 2: Convert to fraction form
    58,223.88/87,336.36 = 20,785.68/x
  3. Step 3: Cross multiply
    58,223.88x = 87,336.36 × 20,785.68
  4. Step 4: Simplify right side
    58,223.88x = 1,815,345,631.32
  5. Step 5: Solve for x
    x = 1,815,345,631.32/58,223.88
  6. Step 6: Final answer
    x = 31,178.71

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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.