Home / 98,212.96-135,534.83-55,771.80

Finding the Fourth Proportional to 98,212.96, 135,534.83 and 55,771.80

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Solution

The fourth proportional to 98,212.96, 135,534.83 and 55,771.80 is: 76,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,212.96 : 135,534.83 = 55,771.80 : x
  2. Step 2: Convert to fraction form
    98,212.96/135,534.83 = 55,771.80/x
  3. Step 3: Cross multiply
    98,212.96x = 135,534.83 × 55,771.80
  4. Step 4: Simplify right side
    98,212.96x = 7,559,021,431.79
  5. Step 5: Solve for x
    x = 7,559,021,431.79/98,212.96
  6. Step 6: Final answer
    x = 76,965.62

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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.