Home / 43,137.17-64,705.38-11,972.42

Finding the Fourth Proportional to 43,137.17, 64,705.38 and 11,972.42

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Solution

The fourth proportional to 43,137.17, 64,705.38 and 11,972.42 is: 17,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,137.17 : 64,705.38 = 11,972.42 : x
  2. Step 2: Convert to fraction form
    43,137.17/64,705.38 = 11,972.42/x
  3. Step 3: Cross multiply
    43,137.17x = 64,705.38 × 11,972.42
  4. Step 4: Simplify right side
    43,137.17x = 774,679,985.62
  5. Step 5: Solve for x
    x = 774,679,985.62/43,137.17
  6. Step 6: Final answer
    x = 17,958.53

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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.