Home / 82,087.79-123,131.70-19,758.29

Finding the Fourth Proportional to 82,087.79, 123,131.70 and 19,758.29

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Solution

The fourth proportional to 82,087.79, 123,131.70 and 19,758.29 is: 29,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,087.79 : 123,131.70 = 19,758.29 : x
  2. Step 2: Convert to fraction form
    82,087.79/123,131.70 = 19,758.29/x
  3. Step 3: Cross multiply
    82,087.79x = 123,131.70 × 19,758.29
  4. Step 4: Simplify right side
    82,087.79x = 2,432,871,221.13
  5. Step 5: Solve for x
    x = 2,432,871,221.13/82,087.79
  6. Step 6: Final answer
    x = 29,637.43

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1.5x scale

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.