Home / 55,668.11-76,821.71-30,174.38

Finding the Fourth Proportional to 55,668.11, 76,821.71 and 30,174.38

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Solution

The fourth proportional to 55,668.11, 76,821.71 and 30,174.38 is: 41,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,668.11 : 76,821.71 = 30,174.38 : x
  2. Step 2: Convert to fraction form
    55,668.11/76,821.71 = 30,174.38/x
  3. Step 3: Cross multiply
    55,668.11x = 76,821.71 × 30,174.38
  4. Step 4: Simplify right side
    55,668.11x = 2,318,046,934.81
  5. Step 5: Solve for x
    x = 2,318,046,934.81/55,668.11
  6. Step 6: Final answer
    x = 41,640.49

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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.