Home / 45,589.20-68,391-19,294.08

Finding the Fourth Proportional to 45,589.20, 68,391 and 19,294.08

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Solution

The fourth proportional to 45,589.20, 68,391 and 19,294.08 is: 28,944.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,589.20 : 68,391 = 19,294.08 : x
  2. Step 2: Convert to fraction form
    45,589.20/68,391 = 19,294.08/x
  3. Step 3: Cross multiply
    45,589.20x = 68,391 × 19,294.08
  4. Step 4: Simplify right side
    45,589.20x = 1,319,541,425.28
  5. Step 5: Solve for x
    x = 1,319,541,425.28/45,589.20
  6. Step 6: Final answer
    x = 28,944.17

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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.