Home / 54,753.95-82,139.79-21,455.96

Finding the Fourth Proportional to 54,753.95, 82,139.79 and 21,455.96

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Solution

The fourth proportional to 54,753.95, 82,139.79 and 21,455.96 is: 32,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,753.95 : 82,139.79 = 21,455.96 : x
  2. Step 2: Convert to fraction form
    54,753.95/82,139.79 = 21,455.96/x
  3. Step 3: Cross multiply
    54,753.95x = 82,139.79 × 21,455.96
  4. Step 4: Simplify right side
    54,753.95x = 1,762,387,637.95
  5. Step 5: Solve for x
    x = 1,762,387,637.95/54,753.95
  6. Step 6: Final answer
    x = 32,187.41

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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.