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Finding the Fourth Proportional to 56,344.73, 84,549.92 and 21,287.12

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Solution

The fourth proportional to 56,344.73, 84,549.92 and 21,287.12 is: 31,943.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,344.73 : 84,549.92 = 21,287.12 : x
  2. Step 2: Convert to fraction form
    56,344.73/84,549.92 = 21,287.12/x
  3. Step 3: Cross multiply
    56,344.73x = 84,549.92 × 21,287.12
  4. Step 4: Simplify right side
    56,344.73x = 1,799,823,763.85
  5. Step 5: Solve for x
    x = 1,799,823,763.85/56,344.73
  6. Step 6: Final answer
    x = 31,943.07

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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.