Home / 85,156.96-117,516.63-49,367.72

Finding the Fourth Proportional to 85,156.96, 117,516.63 and 49,367.72

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Solution

The fourth proportional to 85,156.96, 117,516.63 and 49,367.72 is: 68,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,156.96 : 117,516.63 = 49,367.72 : x
  2. Step 2: Convert to fraction form
    85,156.96/117,516.63 = 49,367.72/x
  3. Step 3: Cross multiply
    85,156.96x = 117,516.63 × 49,367.72
  4. Step 4: Simplify right side
    85,156.96x = 5,801,527,682.73
  5. Step 5: Solve for x
    x = 5,801,527,682.73/85,156.96
  6. Step 6: Final answer
    x = 68,127.47

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1.5x scale

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.