Home / 45,000.24-67,488-13,408.88

Finding the Fourth Proportional to 45,000.24, 67,488 and 13,408.88

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Solution

The fourth proportional to 45,000.24, 67,488 and 13,408.88 is: 20,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.24 : 67,488 = 13,408.88 : x
  2. Step 2: Convert to fraction form
    45,000.24/67,488 = 13,408.88/x
  3. Step 3: Cross multiply
    45,000.24x = 67,488 × 13,408.88
  4. Step 4: Simplify right side
    45,000.24x = 904,938,493.44
  5. Step 5: Solve for x
    x = 904,938,493.44/45,000.24
  6. Step 6: Final answer
    x = 20,109.64

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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.