Home / 77,469.17-116,190.38-20,543.48

Finding the Fourth Proportional to 77,469.17, 116,190.38 and 20,543.48

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Solution

The fourth proportional to 77,469.17, 116,190.38 and 20,543.48 is: 30,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,469.17 : 116,190.38 = 20,543.48 : x
  2. Step 2: Convert to fraction form
    77,469.17/116,190.38 = 20,543.48/x
  3. Step 3: Cross multiply
    77,469.17x = 116,190.38 × 20,543.48
  4. Step 4: Simplify right side
    77,469.17x = 2,386,954,747.72
  5. Step 5: Solve for x
    x = 2,386,954,747.72/77,469.17
  6. Step 6: Final answer
    x = 30,811.67

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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.