Home / 84,485.14-126,711.57-25,320.80

Finding the Fourth Proportional to 84,485.14, 126,711.57 and 25,320.80

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Solution

The fourth proportional to 84,485.14, 126,711.57 and 25,320.80 is: 37,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485.14 : 126,711.57 = 25,320.80 : x
  2. Step 2: Convert to fraction form
    84,485.14/126,711.57 = 25,320.80/x
  3. Step 3: Cross multiply
    84,485.14x = 126,711.57 × 25,320.80
  4. Step 4: Simplify right side
    84,485.14x = 3,208,438,733.39
  5. Step 5: Solve for x
    x = 3,208,438,733.39/84,485.14
  6. Step 6: Final answer
    x = 37,976.37

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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.