Home / 87,675.30-131,426.55-43,308.90

Finding the Fourth Proportional to 87,675.30, 131,426.55 and 43,308.90

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Solution

The fourth proportional to 87,675.30, 131,426.55 and 43,308.90 is: 64,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,675.30 : 131,426.55 = 43,308.90 : x
  2. Step 2: Convert to fraction form
    87,675.30/131,426.55 = 43,308.90/x
  3. Step 3: Cross multiply
    87,675.30x = 131,426.55 × 43,308.90
  4. Step 4: Simplify right side
    87,675.30x = 5,691,939,311.30
  5. Step 5: Solve for x
    x = 5,691,939,311.30/87,675.30
  6. Step 6: Final answer
    x = 64,920.67

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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.