Home / 72,068.31-108,108.23-25,331.67

Finding the Fourth Proportional to 72,068.31, 108,108.23 and 25,331.67

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Solution

The fourth proportional to 72,068.31, 108,108.23 and 25,331.67 is: 37,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.31 : 108,108.23 = 25,331.67 : x
  2. Step 2: Convert to fraction form
    72,068.31/108,108.23 = 25,331.67/x
  3. Step 3: Cross multiply
    72,068.31x = 108,108.23 × 25,331.67
  4. Step 4: Simplify right side
    72,068.31x = 2,738,561,879.99
  5. Step 5: Solve for x
    x = 2,738,561,879.99/72,068.31
  6. Step 6: Final answer
    x = 37,999.53

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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.