Home / 90,606.21-135,855.48-34,450.43

Finding the Fourth Proportional to 90,606.21, 135,855.48 and 34,450.43

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Solution

The fourth proportional to 90,606.21, 135,855.48 and 34,450.43 is: 51,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,606.21 : 135,855.48 = 34,450.43 : x
  2. Step 2: Convert to fraction form
    90,606.21/135,855.48 = 34,450.43/x
  3. Step 3: Cross multiply
    90,606.21x = 135,855.48 × 34,450.43
  4. Step 4: Simplify right side
    90,606.21x = 4,680,279,024.58
  5. Step 5: Solve for x
    x = 4,680,279,024.58/90,606.21
  6. Step 6: Final answer
    x = 51,655.17

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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.