Home / 90,228.48-124,513.58-49,942.28

Finding the Fourth Proportional to 90,228.48, 124,513.58 and 49,942.28

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Solution

The fourth proportional to 90,228.48, 124,513.58 and 49,942.28 is: 68,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,228.48 : 124,513.58 = 49,942.28 : x
  2. Step 2: Convert to fraction form
    90,228.48/124,513.58 = 49,942.28/x
  3. Step 3: Cross multiply
    90,228.48x = 124,513.58 × 49,942.28
  4. Step 4: Simplify right side
    90,228.48x = 6,218,492,076.16
  5. Step 5: Solve for x
    x = 6,218,492,076.16/90,228.48
  6. Step 6: Final answer
    x = 68,919.39

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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.