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Finding the Fourth Proportional to 58,230.52, 87,364.24 and 20,789.80

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Solution

The fourth proportional to 58,230.52, 87,364.24 and 20,789.80 is: 31,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,230.52 : 87,364.24 = 20,789.80 : x
  2. Step 2: Convert to fraction form
    58,230.52/87,364.24 = 20,789.80/x
  3. Step 3: Cross multiply
    58,230.52x = 87,364.24 × 20,789.80
  4. Step 4: Simplify right side
    58,230.52x = 1,816,284,806.37
  5. Step 5: Solve for x
    x = 1,816,284,806.37/58,230.52
  6. Step 6: Final answer
    x = 31,191.29

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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.