Home / 92,910.45-128,217.09-50,469

Finding the Fourth Proportional to 92,910.45, 128,217.09 and 50,469

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Solution

The fourth proportional to 92,910.45, 128,217.09 and 50,469 is: 69,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,910.45 : 128,217.09 = 50,469 : x
  2. Step 2: Convert to fraction form
    92,910.45/128,217.09 = 50,469/x
  3. Step 3: Cross multiply
    92,910.45x = 128,217.09 × 50,469
  4. Step 4: Simplify right side
    92,910.45x = 6,470,988,315.21
  5. Step 5: Solve for x
    x = 6,470,988,315.21/92,910.45
  6. Step 6: Final answer
    x = 69,647.58

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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.