Home / 54,654.90-81,985.29-17,217.91

Finding the Fourth Proportional to 54,654.90, 81,985.29 and 17,217.91

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Solution

The fourth proportional to 54,654.90, 81,985.29 and 17,217.91 is: 25,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.90 : 81,985.29 = 17,217.91 : x
  2. Step 2: Convert to fraction form
    54,654.90/81,985.29 = 17,217.91/x
  3. Step 3: Cross multiply
    54,654.90x = 81,985.29 × 17,217.91
  4. Step 4: Simplify right side
    54,654.90x = 1,411,614,946.52
  5. Step 5: Solve for x
    x = 1,411,614,946.52/54,654.90
  6. Step 6: Final answer
    x = 25,827.78

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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.