Home / 84,335.72-126,241.14-53,105.36

Finding the Fourth Proportional to 84,335.72, 126,241.14 and 53,105.36

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Solution

The fourth proportional to 84,335.72, 126,241.14 and 53,105.36 is: 79,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,335.72 : 126,241.14 = 53,105.36 : x
  2. Step 2: Convert to fraction form
    84,335.72/126,241.14 = 53,105.36/x
  3. Step 3: Cross multiply
    84,335.72x = 126,241.14 × 53,105.36
  4. Step 4: Simplify right side
    84,335.72x = 6,704,081,186.51
  5. Step 5: Solve for x
    x = 6,704,081,186.51/84,335.72
  6. Step 6: Final answer
    x = 79,492.78

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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.