Home / 78,721.26-108,631.23-44,725.03

Finding the Fourth Proportional to 78,721.26, 108,631.23 and 44,725.03

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Solution

The fourth proportional to 78,721.26, 108,631.23 and 44,725.03 is: 61,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,721.26 : 108,631.23 = 44,725.03 : x
  2. Step 2: Convert to fraction form
    78,721.26/108,631.23 = 44,725.03/x
  3. Step 3: Cross multiply
    78,721.26x = 108,631.23 × 44,725.03
  4. Step 4: Simplify right side
    78,721.26x = 4,858,535,020.69
  5. Step 5: Solve for x
    x = 4,858,535,020.69/78,721.26
  6. Step 6: Final answer
    x = 61,718.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.