Home / 92,865.40-139,202.78-36,682.76

Finding the Fourth Proportional to 92,865.40, 139,202.78 and 36,682.76

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Solution

The fourth proportional to 92,865.40, 139,202.78 and 36,682.76 is: 54,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,865.40 : 139,202.78 = 36,682.76 : x
  2. Step 2: Convert to fraction form
    92,865.40/139,202.78 = 36,682.76/x
  3. Step 3: Cross multiply
    92,865.40x = 139,202.78 × 36,682.76
  4. Step 4: Simplify right side
    92,865.40x = 5,106,342,170.07
  5. Step 5: Solve for x
    x = 5,106,342,170.07/92,865.40
  6. Step 6: Final answer
    x = 54,986.49

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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.