Home / 92,839.36-128,104.80-53,087.68

Finding the Fourth Proportional to 92,839.36, 128,104.80 and 53,087.68

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Solution

The fourth proportional to 92,839.36, 128,104.80 and 53,087.68 is: 73,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,839.36 : 128,104.80 = 53,087.68 : x
  2. Step 2: Convert to fraction form
    92,839.36/128,104.80 = 53,087.68/x
  3. Step 3: Cross multiply
    92,839.36x = 128,104.80 × 53,087.68
  4. Step 4: Simplify right side
    92,839.36x = 6,800,786,628.86
  5. Step 5: Solve for x
    x = 6,800,786,628.86/92,839.36
  6. Step 6: Final answer
    x = 73,253.27

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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.