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Finding the Fourth Proportional to 54,400.77, 81,551.90 and 19,332.23

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Solution

The fourth proportional to 54,400.77, 81,551.90 and 19,332.23 is: 28,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,400.77 : 81,551.90 = 19,332.23 : x
  2. Step 2: Convert to fraction form
    54,400.77/81,551.90 = 19,332.23/x
  3. Step 3: Cross multiply
    54,400.77x = 81,551.90 × 19,332.23
  4. Step 4: Simplify right side
    54,400.77x = 1,576,579,583.32
  5. Step 5: Solve for x
    x = 1,576,579,583.32/54,400.77
  6. Step 6: Final answer
    x = 28,980.83

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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.