Home / 78,515.91-108,341.43-46,673.19

Finding the Fourth Proportional to 78,515.91, 108,341.43 and 46,673.19

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Solution

The fourth proportional to 78,515.91, 108,341.43 and 46,673.19 is: 64,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515.91 : 108,341.43 = 46,673.19 : x
  2. Step 2: Convert to fraction form
    78,515.91/108,341.43 = 46,673.19/x
  3. Step 3: Cross multiply
    78,515.91x = 108,341.43 × 46,673.19
  4. Step 4: Simplify right side
    78,515.91x = 5,056,640,147.26
  5. Step 5: Solve for x
    x = 5,056,640,147.26/78,515.91
  6. Step 6: Final answer
    x = 64,402.75

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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.