Home / 84,768.84-116,985.60-47,043.90

Finding the Fourth Proportional to 84,768.84, 116,985.60 and 47,043.90

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Solution

The fourth proportional to 84,768.84, 116,985.60 and 47,043.90 is: 64,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768.84 : 116,985.60 = 47,043.90 : x
  2. Step 2: Convert to fraction form
    84,768.84/116,985.60 = 47,043.90/x
  3. Step 3: Cross multiply
    84,768.84x = 116,985.60 × 47,043.90
  4. Step 4: Simplify right side
    84,768.84x = 5,503,458,867.84
  5. Step 5: Solve for x
    x = 5,503,458,867.84/84,768.84
  6. Step 6: Final answer
    x = 64,923.14

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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.