Home / 61,645.05-92,467.58-21,121.63

Finding the Fourth Proportional to 61,645.05, 92,467.58 and 21,121.63

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Solution

The fourth proportional to 61,645.05, 92,467.58 and 21,121.63 is: 31,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.05 : 92,467.58 = 21,121.63 : x
  2. Step 2: Convert to fraction form
    61,645.05/92,467.58 = 21,121.63/x
  3. Step 3: Cross multiply
    61,645.05x = 92,467.58 × 21,121.63
  4. Step 4: Simplify right side
    61,645.05x = 1,953,065,674.98
  5. Step 5: Solve for x
    x = 1,953,065,674.98/61,645.05
  6. Step 6: Final answer
    x = 31,682.44

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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.