Home / 92,901.20-128,203.56-50,459.76

Finding the Fourth Proportional to 92,901.20, 128,203.56 and 50,459.76

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Solution

The fourth proportional to 92,901.20, 128,203.56 and 50,459.76 is: 69,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,901.20 : 128,203.56 = 50,459.76 : x
  2. Step 2: Convert to fraction form
    92,901.20/128,203.56 = 50,459.76/x
  3. Step 3: Cross multiply
    92,901.20x = 128,203.56 × 50,459.76
  4. Step 4: Simplify right side
    92,901.20x = 6,469,120,868.75
  5. Step 5: Solve for x
    x = 6,469,120,868.75/92,901.20
  6. Step 6: Final answer
    x = 69,634.42

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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.