Home / 82,905.70-114,412.93-47,101.78

Finding the Fourth Proportional to 82,905.70, 114,412.93 and 47,101.78

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Solution

The fourth proportional to 82,905.70, 114,412.93 and 47,101.78 is: 65,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,905.70 : 114,412.93 = 47,101.78 : x
  2. Step 2: Convert to fraction form
    82,905.70/114,412.93 = 47,101.78/x
  3. Step 3: Cross multiply
    82,905.70x = 114,412.93 × 47,101.78
  4. Step 4: Simplify right side
    82,905.70x = 5,389,052,658.02
  5. Step 5: Solve for x
    x = 5,389,052,658.02/82,905.70
  6. Step 6: Final answer
    x = 65,002.20

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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.