Home / 82,536.95-123,804.21-20,207.45

Finding the Fourth Proportional to 82,536.95, 123,804.21 and 20,207.45

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Solution

The fourth proportional to 82,536.95, 123,804.21 and 20,207.45 is: 30,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,536.95 : 123,804.21 = 20,207.45 : x
  2. Step 2: Convert to fraction form
    82,536.95/123,804.21 = 20,207.45/x
  3. Step 3: Cross multiply
    82,536.95x = 123,804.21 × 20,207.45
  4. Step 4: Simplify right side
    82,536.95x = 2,501,767,383.36
  5. Step 5: Solve for x
    x = 2,501,767,383.36/82,536.95
  6. Step 6: Final answer
    x = 30,310.88

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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.