Home / 87,676.59-120,992.89-53,744.07

Finding the Fourth Proportional to 87,676.59, 120,992.89 and 53,744.07

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Solution

The fourth proportional to 87,676.59, 120,992.89 and 53,744.07 is: 74,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,676.59 : 120,992.89 = 53,744.07 : x
  2. Step 2: Convert to fraction form
    87,676.59/120,992.89 = 53,744.07/x
  3. Step 3: Cross multiply
    87,676.59x = 120,992.89 × 53,744.07
  4. Step 4: Simplify right side
    87,676.59x = 6,502,650,349.66
  5. Step 5: Solve for x
    x = 6,502,650,349.66/87,676.59
  6. Step 6: Final answer
    x = 74,166.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.