Home / 84,580.85-126,822.07-31,994.43

Finding the Fourth Proportional to 84,580.85, 126,822.07 and 31,994.43

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Solution

The fourth proportional to 84,580.85, 126,822.07 and 31,994.43 is: 47,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580.85 : 126,822.07 = 31,994.43 : x
  2. Step 2: Convert to fraction form
    84,580.85/126,822.07 = 31,994.43/x
  3. Step 3: Cross multiply
    84,580.85x = 126,822.07 × 31,994.43
  4. Step 4: Simplify right side
    84,580.85x = 4,057,599,681.10
  5. Step 5: Solve for x
    x = 4,057,599,681.10/84,580.85
  6. Step 6: Final answer
    x = 47,973.03

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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.