Home / 42,103.99-63,175.68-18,408.47

Finding the Fourth Proportional to 42,103.99, 63,175.68 and 18,408.47

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Solution

The fourth proportional to 42,103.99, 63,175.68 and 18,408.47 is: 27,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,103.99 : 63,175.68 = 18,408.47 : x
  2. Step 2: Convert to fraction form
    42,103.99/63,175.68 = 18,408.47/x
  3. Step 3: Cross multiply
    42,103.99x = 63,175.68 × 18,408.47
  4. Step 4: Simplify right side
    42,103.99x = 1,162,967,294.13
  5. Step 5: Solve for x
    x = 1,162,967,294.13/42,103.99
  6. Step 6: Final answer
    x = 27,621.31

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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.