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Finding the Fourth Proportional to 56,324.88, 77,724.99 and 30,826.20

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Solution

The fourth proportional to 56,324.88, 77,724.99 and 30,826.20 is: 42,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,324.88 : 77,724.99 = 30,826.20 : x
  2. Step 2: Convert to fraction form
    56,324.88/77,724.99 = 30,826.20/x
  3. Step 3: Cross multiply
    56,324.88x = 77,724.99 × 30,826.20
  4. Step 4: Simplify right side
    56,324.88x = 2,395,966,086.74
  5. Step 5: Solve for x
    x = 2,395,966,086.74/56,324.88
  6. Step 6: Final answer
    x = 42,538.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.