Home / 83,942.85-115,838.31-45,701.67

Finding the Fourth Proportional to 83,942.85, 115,838.31 and 45,701.67

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Solution

The fourth proportional to 83,942.85, 115,838.31 and 45,701.67 is: 63,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,942.85 : 115,838.31 = 45,701.67 : x
  2. Step 2: Convert to fraction form
    83,942.85/115,838.31 = 45,701.67/x
  3. Step 3: Cross multiply
    83,942.85x = 115,838.31 × 45,701.67
  4. Step 4: Simplify right side
    83,942.85x = 5,294,004,216.98
  5. Step 5: Solve for x
    x = 5,294,004,216.98/83,942.85
  6. Step 6: Final answer
    x = 63,066.77

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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.