Home / 98,270.82-135,614.18-55,831.68

Finding the Fourth Proportional to 98,270.82, 135,614.18 and 55,831.68

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Solution

The fourth proportional to 98,270.82, 135,614.18 and 55,831.68 is: 77,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,270.82 : 135,614.18 = 55,831.68 : x
  2. Step 2: Convert to fraction form
    98,270.82/135,614.18 = 55,831.68/x
  3. Step 3: Cross multiply
    98,270.82x = 135,614.18 × 55,831.68
  4. Step 4: Simplify right side
    98,270.82x = 7,571,567,501.22
  5. Step 5: Solve for x
    x = 7,571,567,501.22/98,270.82
  6. Step 6: Final answer
    x = 77,047.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.