Home / 82,084.85-123,127.30-19,755.35

Finding the Fourth Proportional to 82,084.85, 123,127.30 and 19,755.35

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Solution

The fourth proportional to 82,084.85, 123,127.30 and 19,755.35 is: 29,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,084.85 : 123,127.30 = 19,755.35 : x
  2. Step 2: Convert to fraction form
    82,084.85/123,127.30 = 19,755.35/x
  3. Step 3: Cross multiply
    82,084.85x = 123,127.30 × 19,755.35
  4. Step 4: Simplify right side
    82,084.85x = 2,432,422,499.46
  5. Step 5: Solve for x
    x = 2,432,422,499.46/82,084.85
  6. Step 6: Final answer
    x = 29,633.03

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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.