Home / 84,539.36-126,817.49-31,245.34

Finding the Fourth Proportional to 84,539.36, 126,817.49 and 31,245.34

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Solution

The fourth proportional to 84,539.36, 126,817.49 and 31,245.34 is: 46,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,539.36 : 126,817.49 = 31,245.34 : x
  2. Step 2: Convert to fraction form
    84,539.36/126,817.49 = 31,245.34/x
  3. Step 3: Cross multiply
    84,539.36x = 126,817.49 × 31,245.34
  4. Step 4: Simplify right side
    84,539.36x = 3,962,455,593.00
  5. Step 5: Solve for x
    x = 3,962,455,593.00/84,539.36
  6. Step 6: Final answer
    x = 46,871.13

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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.