Home / 83,003.75-114,670.08-54,391.40

Finding the Fourth Proportional to 83,003.75, 114,670.08 and 54,391.40

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Solution

The fourth proportional to 83,003.75, 114,670.08 and 54,391.40 is: 75,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,003.75 : 114,670.08 = 54,391.40 : x
  2. Step 2: Convert to fraction form
    83,003.75/114,670.08 = 54,391.40/x
  3. Step 3: Cross multiply
    83,003.75x = 114,670.08 × 54,391.40
  4. Step 4: Simplify right side
    83,003.75x = 6,237,065,615.96
  5. Step 5: Solve for x
    x = 6,237,065,615.96/83,003.75
  6. Step 6: Final answer
    x = 75,141.98

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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.