Home / 66,040.57-91,112.07-43,391.76

Finding the Fourth Proportional to 66,040.57, 91,112.07 and 43,391.76

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Solution

The fourth proportional to 66,040.57, 91,112.07 and 43,391.76 is: 59,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.57 : 91,112.07 = 43,391.76 : x
  2. Step 2: Convert to fraction form
    66,040.57/91,112.07 = 43,391.76/x
  3. Step 3: Cross multiply
    66,040.57x = 91,112.07 × 43,391.76
  4. Step 4: Simplify right side
    66,040.57x = 3,953,513,074.54
  5. Step 5: Solve for x
    x = 3,953,513,074.54/66,040.57
  6. Step 6: Final answer
    x = 59,864.91

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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.