Home / 98,273.20-135,617.04-55,831.80

Finding the Fourth Proportional to 98,273.20, 135,617.04 and 55,831.80

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Solution

The fourth proportional to 98,273.20, 135,617.04 and 55,831.80 is: 77,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,273.20 : 135,617.04 = 55,831.80 : x
  2. Step 2: Convert to fraction form
    98,273.20/135,617.04 = 55,831.80/x
  3. Step 3: Cross multiply
    98,273.20x = 135,617.04 × 55,831.80
  4. Step 4: Simplify right side
    98,273.20x = 7,571,743,453.87
  5. Step 5: Solve for x
    x = 7,571,743,453.87/98,273.20
  6. Step 6: Final answer
    x = 77,047.90

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1.5x scale

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.