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Finding the Fourth Proportional to 45,350.88, 67,927.68 and 21,928

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Solution

The fourth proportional to 45,350.88, 67,927.68 and 21,928 is: 32,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,350.88 : 67,927.68 = 21,928 : x
  2. Step 2: Convert to fraction form
    45,350.88/67,927.68 = 21,928/x
  3. Step 3: Cross multiply
    45,350.88x = 67,927.68 × 21,928
  4. Step 4: Simplify right side
    45,350.88x = 1,489,518,167.04
  5. Step 5: Solve for x
    x = 1,489,518,167.04/45,350.88
  6. Step 6: Final answer
    x = 32,844.31

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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.