Home / 81,458.07-122,206.23-25,295.28

Finding the Fourth Proportional to 81,458.07, 122,206.23 and 25,295.28

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Solution

The fourth proportional to 81,458.07, 122,206.23 and 25,295.28 is: 37,948.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,458.07 : 122,206.23 = 25,295.28 : x
  2. Step 2: Convert to fraction form
    81,458.07/122,206.23 = 25,295.28/x
  3. Step 3: Cross multiply
    81,458.07x = 122,206.23 × 25,295.28
  4. Step 4: Simplify right side
    81,458.07x = 3,091,240,805.59
  5. Step 5: Solve for x
    x = 3,091,240,805.59/81,458.07
  6. Step 6: Final answer
    x = 37,948.86

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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.