Home / 45,158.97-67,782.20-21,801.81

Finding the Fourth Proportional to 45,158.97, 67,782.20 and 21,801.81

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Solution

The fourth proportional to 45,158.97, 67,782.20 and 21,801.81 is: 32,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,158.97 : 67,782.20 = 21,801.81 : x
  2. Step 2: Convert to fraction form
    45,158.97/67,782.20 = 21,801.81/x
  3. Step 3: Cross multiply
    45,158.97x = 67,782.20 × 21,801.81
  4. Step 4: Simplify right side
    45,158.97x = 1,477,774,536.77
  5. Step 5: Solve for x
    x = 1,477,774,536.77/45,158.97
  6. Step 6: Final answer
    x = 32,723.83

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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.