Home / 66,040.07-91,111.38-43,391.26

Finding the Fourth Proportional to 66,040.07, 91,111.38 and 43,391.26

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Solution

The fourth proportional to 66,040.07, 91,111.38 and 43,391.26 is: 59,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.07 : 91,111.38 = 43,391.26 : x
  2. Step 2: Convert to fraction form
    66,040.07/91,111.38 = 43,391.26/x
  3. Step 3: Cross multiply
    66,040.07x = 91,111.38 × 43,391.26
  4. Step 4: Simplify right side
    66,040.07x = 3,953,437,122.98
  5. Step 5: Solve for x
    x = 3,953,437,122.98/66,040.07
  6. Step 6: Final answer
    x = 59,864.22

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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.