Home / 78,516.34-117,778.36-22,360.38

Finding the Fourth Proportional to 78,516.34, 117,778.36 and 22,360.38

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Solution

The fourth proportional to 78,516.34, 117,778.36 and 22,360.38 is: 33,541.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,516.34 : 117,778.36 = 22,360.38 : x
  2. Step 2: Convert to fraction form
    78,516.34/117,778.36 = 22,360.38/x
  3. Step 3: Cross multiply
    78,516.34x = 117,778.36 × 22,360.38
  4. Step 4: Simplify right side
    78,516.34x = 2,633,568,885.38
  5. Step 5: Solve for x
    x = 2,633,568,885.38/78,516.34
  6. Step 6: Final answer
    x = 33,541.67

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1.5x scale

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.