Home / 78,439.26-108,255.39-46,608.18

Finding the Fourth Proportional to 78,439.26, 108,255.39 and 46,608.18

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Solution

The fourth proportional to 78,439.26, 108,255.39 and 46,608.18 is: 64,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,439.26 : 108,255.39 = 46,608.18 : x
  2. Step 2: Convert to fraction form
    78,439.26/108,255.39 = 46,608.18/x
  3. Step 3: Cross multiply
    78,439.26x = 108,255.39 × 46,608.18
  4. Step 4: Simplify right side
    78,439.26x = 5,045,586,703.09
  5. Step 5: Solve for x
    x = 5,045,586,703.09/78,439.26
  6. Step 6: Final answer
    x = 64,324.76

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1.5x scale

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.