Home / 78,480.33-117,604.70-46,426.25

Finding the Fourth Proportional to 78,480.33, 117,604.70 and 46,426.25

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Solution

The fourth proportional to 78,480.33, 117,604.70 and 46,426.25 is: 69,570.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,480.33 : 117,604.70 = 46,426.25 : x
  2. Step 2: Convert to fraction form
    78,480.33/117,604.70 = 46,426.25/x
  3. Step 3: Cross multiply
    78,480.33x = 117,604.70 × 46,426.25
  4. Step 4: Simplify right side
    78,480.33x = 5,459,945,203.38
  5. Step 5: Solve for x
    x = 5,459,945,203.38/78,480.33
  6. Step 6: Final answer
    x = 69,570.87

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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.