Home / 66,236.85-91,374.71-39,360.33

Finding the Fourth Proportional to 66,236.85, 91,374.71 and 39,360.33

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Solution

The fourth proportional to 66,236.85, 91,374.71 and 39,360.33 is: 54,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,236.85 : 91,374.71 = 39,360.33 : x
  2. Step 2: Convert to fraction form
    66,236.85/91,374.71 = 39,360.33/x
  3. Step 3: Cross multiply
    66,236.85x = 91,374.71 × 39,360.33
  4. Step 4: Simplify right side
    66,236.85x = 3,596,538,542.45
  5. Step 5: Solve for x
    x = 3,596,538,542.45/66,236.85
  6. Step 6: Final answer
    x = 54,298.15

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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.