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Finding the Fourth Proportional to 54,541.05, 81,807.25 and 19,477.05

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Solution

The fourth proportional to 54,541.05, 81,807.25 and 19,477.05 is: 29,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,541.05 : 81,807.25 = 19,477.05 : x
  2. Step 2: Convert to fraction form
    54,541.05/81,807.25 = 19,477.05/x
  3. Step 3: Cross multiply
    54,541.05x = 81,807.25 × 19,477.05
  4. Step 4: Simplify right side
    54,541.05x = 1,593,363,898.61
  5. Step 5: Solve for x
    x = 1,593,363,898.61/54,541.05
  6. Step 6: Final answer
    x = 29,214.03

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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.