Home / 66,185.40-91,349.14-39,322.74

Finding the Fourth Proportional to 66,185.40, 91,349.14 and 39,322.74

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Solution

The fourth proportional to 66,185.40, 91,349.14 and 39,322.74 is: 54,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,185.40 : 91,349.14 = 39,322.74 : x
  2. Step 2: Convert to fraction form
    66,185.40/91,349.14 = 39,322.74/x
  3. Step 3: Cross multiply
    66,185.40x = 91,349.14 × 39,322.74
  4. Step 4: Simplify right side
    66,185.40x = 3,592,098,653.10
  5. Step 5: Solve for x
    x = 3,592,098,653.10/66,185.40
  6. Step 6: Final answer
    x = 54,273.28

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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.