Home / 49,007-67,631.28-30,140.48

Finding the Fourth Proportional to 49,007, 67,631.28 and 30,140.48

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Solution

The fourth proportional to 49,007, 67,631.28 and 30,140.48 is: 41,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,007 : 67,631.28 = 30,140.48 : x
  2. Step 2: Convert to fraction form
    49,007/67,631.28 = 30,140.48/x
  3. Step 3: Cross multiply
    49,007x = 67,631.28 × 30,140.48
  4. Step 4: Simplify right side
    49,007x = 2,038,439,242.21
  5. Step 5: Solve for x
    x = 2,038,439,242.21/49,007
  6. Step 6: Final answer
    x = 41,594.86

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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.