Home / 72,012.23-108,005.28-19,409.41

Finding the Fourth Proportional to 72,012.23, 108,005.28 and 19,409.41

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Solution

The fourth proportional to 72,012.23, 108,005.28 and 19,409.41 is: 29,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,012.23 : 108,005.28 = 19,409.41 : x
  2. Step 2: Convert to fraction form
    72,012.23/108,005.28 = 19,409.41/x
  3. Step 3: Cross multiply
    72,012.23x = 108,005.28 × 19,409.41
  4. Step 4: Simplify right side
    72,012.23x = 2,096,318,761.68
  5. Step 5: Solve for x
    x = 2,096,318,761.68/72,012.23
  6. Step 6: Final answer
    x = 29,110.59

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1.5x scale

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.