Home / 43,304.94-64,961.54-12,140.10

Finding the Fourth Proportional to 43,304.94, 64,961.54 and 12,140.10

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Solution

The fourth proportional to 43,304.94, 64,961.54 and 12,140.10 is: 18,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,304.94 : 64,961.54 = 12,140.10 : x
  2. Step 2: Convert to fraction form
    43,304.94/64,961.54 = 12,140.10/x
  3. Step 3: Cross multiply
    43,304.94x = 64,961.54 × 12,140.10
  4. Step 4: Simplify right side
    43,304.94x = 788,639,591.75
  5. Step 5: Solve for x
    x = 788,639,591.75/43,304.94
  6. Step 6: Final answer
    x = 18,211.31

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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.