Home / 98,220.06-135,544.63-55,778.89

Finding the Fourth Proportional to 98,220.06, 135,544.63 and 55,778.89

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Solution

The fourth proportional to 98,220.06, 135,544.63 and 55,778.89 is: 76,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,220.06 : 135,544.63 = 55,778.89 : x
  2. Step 2: Convert to fraction form
    98,220.06/135,544.63 = 55,778.89/x
  3. Step 3: Cross multiply
    98,220.06x = 135,544.63 × 55,778.89
  4. Step 4: Simplify right side
    98,220.06x = 7,560,529,006.86
  5. Step 5: Solve for x
    x = 7,560,529,006.86/98,220.06
  6. Step 6: Final answer
    x = 76,975.41

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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.