Home / 43,082.94-64,634.73-20,870.37

Finding the Fourth Proportional to 43,082.94, 64,634.73 and 20,870.37

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Solution

The fourth proportional to 43,082.94, 64,634.73 and 20,870.37 is: 31,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,082.94 : 64,634.73 = 20,870.37 : x
  2. Step 2: Convert to fraction form
    43,082.94/64,634.73 = 20,870.37/x
  3. Step 3: Cross multiply
    43,082.94x = 64,634.73 × 20,870.37
  4. Step 4: Simplify right side
    43,082.94x = 1,348,950,729.95
  5. Step 5: Solve for x
    x = 1,348,950,729.95/43,082.94
  6. Step 6: Final answer
    x = 31,310.55

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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.