Home / 72,365.26-108,590.70-40,371.28

Finding the Fourth Proportional to 72,365.26, 108,590.70 and 40,371.28

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Solution

The fourth proportional to 72,365.26, 108,590.70 and 40,371.28 is: 60,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,365.26 : 108,590.70 = 40,371.28 : x
  2. Step 2: Convert to fraction form
    72,365.26/108,590.70 = 40,371.28/x
  3. Step 3: Cross multiply
    72,365.26x = 108,590.70 × 40,371.28
  4. Step 4: Simplify right side
    72,365.26x = 4,383,945,555.10
  5. Step 5: Solve for x
    x = 4,383,945,555.10/72,365.26
  6. Step 6: Final answer
    x = 60,580.80

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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.