Home / 61,768.40-92,652.60-61,112.30

Finding the Fourth Proportional to 61,768.40, 92,652.60 and 61,112.30

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Solution

The fourth proportional to 61,768.40, 92,652.60 and 61,112.30 is: 91,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,768.40 : 92,652.60 = 61,112.30 : x
  2. Step 2: Convert to fraction form
    61,768.40/92,652.60 = 61,112.30/x
  3. Step 3: Cross multiply
    61,768.40x = 92,652.60 × 61,112.30
  4. Step 4: Simplify right side
    61,768.40x = 5,662,213,486.98
  5. Step 5: Solve for x
    x = 5,662,213,486.98/61,768.40
  6. Step 6: Final answer
    x = 91,668.45

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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.