Home / 84,383.90-126,638.13-40,010.81

Finding the Fourth Proportional to 84,383.90, 126,638.13 and 40,010.81

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Solution

The fourth proportional to 84,383.90, 126,638.13 and 40,010.81 is: 60,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,383.90 : 126,638.13 = 40,010.81 : x
  2. Step 2: Convert to fraction form
    84,383.90/126,638.13 = 40,010.81/x
  3. Step 3: Cross multiply
    84,383.90x = 126,638.13 × 40,010.81
  4. Step 4: Simplify right side
    84,383.90x = 5,066,893,524.99
  5. Step 5: Solve for x
    x = 5,066,893,524.99/84,383.90
  6. Step 6: Final answer
    x = 60,045.74

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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.