Home / 54,663.21-81,962.42-19,107.45

Finding the Fourth Proportional to 54,663.21, 81,962.42 and 19,107.45

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Solution

The fourth proportional to 54,663.21, 81,962.42 and 19,107.45 is: 28,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,663.21 : 81,962.42 = 19,107.45 : x
  2. Step 2: Convert to fraction form
    54,663.21/81,962.42 = 19,107.45/x
  3. Step 3: Cross multiply
    54,663.21x = 81,962.42 × 19,107.45
  4. Step 4: Simplify right side
    54,663.21x = 1,566,092,746.49
  5. Step 5: Solve for x
    x = 1,566,092,746.49/54,663.21
  6. Step 6: Final answer
    x = 28,649.85

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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.