Home / 43,231.78-64,855.50-21,045.14

Finding the Fourth Proportional to 43,231.78, 64,855.50 and 21,045.14

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Solution

The fourth proportional to 43,231.78, 64,855.50 and 21,045.14 is: 31,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,231.78 : 64,855.50 = 21,045.14 : x
  2. Step 2: Convert to fraction form
    43,231.78/64,855.50 = 21,045.14/x
  3. Step 3: Cross multiply
    43,231.78x = 64,855.50 × 21,045.14
  4. Step 4: Simplify right side
    43,231.78x = 1,364,893,077.27
  5. Step 5: Solve for x
    x = 1,364,893,077.27/43,231.78
  6. Step 6: Final answer
    x = 31,571.52

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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.