Home / 54,538.80-81,747.45-21,247.80

Finding the Fourth Proportional to 54,538.80, 81,747.45 and 21,247.80

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Solution

The fourth proportional to 54,538.80, 81,747.45 and 21,247.80 is: 31,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,538.80 : 81,747.45 = 21,247.80 : x
  2. Step 2: Convert to fraction form
    54,538.80/81,747.45 = 21,247.80/x
  3. Step 3: Cross multiply
    54,538.80x = 81,747.45 × 21,247.80
  4. Step 4: Simplify right side
    54,538.80x = 1,736,953,468.11
  5. Step 5: Solve for x
    x = 1,736,953,468.11/54,538.80
  6. Step 6: Final answer
    x = 31,848.03

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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.