Home / 78,200.07-117,282.11-46,619.04

Finding the Fourth Proportional to 78,200.07, 117,282.11 and 46,619.04

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Solution

The fourth proportional to 78,200.07, 117,282.11 and 46,619.04 is: 69,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,200.07 : 117,282.11 = 46,619.04 : x
  2. Step 2: Convert to fraction form
    78,200.07/117,282.11 = 46,619.04/x
  3. Step 3: Cross multiply
    78,200.07x = 117,282.11 × 46,619.04
  4. Step 4: Simplify right side
    78,200.07x = 5,467,579,846.32
  5. Step 5: Solve for x
    x = 5,467,579,846.32/78,200.07
  6. Step 6: Final answer
    x = 69,917.84

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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.