Home / 45,125.20-67,676.86-18,830.16

Finding the Fourth Proportional to 45,125.20, 67,676.86 and 18,830.16

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Solution

The fourth proportional to 45,125.20, 67,676.86 and 18,830.16 is: 28,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,125.20 : 67,676.86 = 18,830.16 : x
  2. Step 2: Convert to fraction form
    45,125.20/67,676.86 = 18,830.16/x
  3. Step 3: Cross multiply
    45,125.20x = 67,676.86 × 18,830.16
  4. Step 4: Simplify right side
    45,125.20x = 1,274,366,102.10
  5. Step 5: Solve for x
    x = 1,274,366,102.10/45,125.20
  6. Step 6: Final answer
    x = 28,240.67

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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.