Home / 42,756.82-64,135.23-11,591.26

Finding the Fourth Proportional to 42,756.82, 64,135.23 and 11,591.26

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Solution

The fourth proportional to 42,756.82, 64,135.23 and 11,591.26 is: 17,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.82 : 64,135.23 = 11,591.26 : x
  2. Step 2: Convert to fraction form
    42,756.82/64,135.23 = 11,591.26/x
  3. Step 3: Cross multiply
    42,756.82x = 64,135.23 × 11,591.26
  4. Step 4: Simplify right side
    42,756.82x = 743,408,126.09
  5. Step 5: Solve for x
    x = 743,408,126.09/42,756.82
  6. Step 6: Final answer
    x = 17,386.89

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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.