Home / 66,386.43-91,615.59-36,174.24

Finding the Fourth Proportional to 66,386.43, 91,615.59 and 36,174.24

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Solution

The fourth proportional to 66,386.43, 91,615.59 and 36,174.24 is: 49,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.43 : 91,615.59 = 36,174.24 : x
  2. Step 2: Convert to fraction form
    66,386.43/91,615.59 = 36,174.24/x
  3. Step 3: Cross multiply
    66,386.43x = 91,615.59 × 36,174.24
  4. Step 4: Simplify right side
    66,386.43x = 3,314,124,340.40
  5. Step 5: Solve for x
    x = 3,314,124,340.40/66,386.43
  6. Step 6: Final answer
    x = 49,921.71

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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.