Home / 82,268.16-123,402.23-19,938.66

Finding the Fourth Proportional to 82,268.16, 123,402.23 and 19,938.66

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Solution

The fourth proportional to 82,268.16, 123,402.23 and 19,938.66 is: 29,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,268.16 : 123,402.23 = 19,938.66 : x
  2. Step 2: Convert to fraction form
    82,268.16/123,402.23 = 19,938.66/x
  3. Step 3: Cross multiply
    82,268.16x = 123,402.23 × 19,938.66
  4. Step 4: Simplify right side
    82,268.16x = 2,460,474,731.69
  5. Step 5: Solve for x
    x = 2,460,474,731.69/82,268.16
  6. Step 6: Final answer
    x = 29,907.98

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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.