Home / 84,835.34-127,231.99-28,674.21

Finding the Fourth Proportional to 84,835.34, 127,231.99 and 28,674.21

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Solution

The fourth proportional to 84,835.34, 127,231.99 and 28,674.21 is: 43,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,835.34 : 127,231.99 = 28,674.21 : x
  2. Step 2: Convert to fraction form
    84,835.34/127,231.99 = 28,674.21/x
  3. Step 3: Cross multiply
    84,835.34x = 127,231.99 × 28,674.21
  4. Step 4: Simplify right side
    84,835.34x = 3,648,276,020.45
  5. Step 5: Solve for x
    x = 3,648,276,020.45/84,835.34
  6. Step 6: Final answer
    x = 43,004.20

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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.