Home / 58,578.26-87,846.19-21,128.28

Finding the Fourth Proportional to 58,578.26, 87,846.19 and 21,128.28

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Solution

The fourth proportional to 58,578.26, 87,846.19 and 21,128.28 is: 31,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,578.26 : 87,846.19 = 21,128.28 : x
  2. Step 2: Convert to fraction form
    58,578.26/87,846.19 = 21,128.28/x
  3. Step 3: Cross multiply
    58,578.26x = 87,846.19 × 21,128.28
  4. Step 4: Simplify right side
    58,578.26x = 1,856,038,517.01
  5. Step 5: Solve for x
    x = 1,856,038,517.01/58,578.26
  6. Step 6: Final answer
    x = 31,684.77

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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.