Home / 42,615.28-63,922.88-11,450.53

Finding the Fourth Proportional to 42,615.28, 63,922.88 and 11,450.53

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Solution

The fourth proportional to 42,615.28, 63,922.88 and 11,450.53 is: 17,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.28 : 63,922.88 = 11,450.53 : x
  2. Step 2: Convert to fraction form
    42,615.28/63,922.88 = 11,450.53/x
  3. Step 3: Cross multiply
    42,615.28x = 63,922.88 × 11,450.53
  4. Step 4: Simplify right side
    42,615.28x = 731,950,855.13
  5. Step 5: Solve for x
    x = 731,950,855.13/42,615.28
  6. Step 6: Final answer
    x = 17,175.78

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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.