Home / 84,971.03-127,459.79-31,676.27

Finding the Fourth Proportional to 84,971.03, 127,459.79 and 31,676.27

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Solution

The fourth proportional to 84,971.03, 127,459.79 and 31,676.27 is: 47,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,971.03 : 127,459.79 = 31,676.27 : x
  2. Step 2: Convert to fraction form
    84,971.03/127,459.79 = 31,676.27/x
  3. Step 3: Cross multiply
    84,971.03x = 127,459.79 × 31,676.27
  4. Step 4: Simplify right side
    84,971.03x = 4,037,451,120.02
  5. Step 5: Solve for x
    x = 4,037,451,120.02/84,971.03
  6. Step 6: Final answer
    x = 47,515.62

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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.