Home / 66,330.90-91,538.28-36,117.88

Finding the Fourth Proportional to 66,330.90, 91,538.28 and 36,117.88

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Solution

The fourth proportional to 66,330.90, 91,538.28 and 36,117.88 is: 49,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.90 : 91,538.28 = 36,117.88 : x
  2. Step 2: Convert to fraction form
    66,330.90/91,538.28 = 36,117.88/x
  3. Step 3: Cross multiply
    66,330.90x = 91,538.28 × 36,117.88
  4. Step 4: Simplify right side
    66,330.90x = 3,306,168,383.60
  5. Step 5: Solve for x
    x = 3,306,168,383.60/66,330.90
  6. Step 6: Final answer
    x = 49,843.56

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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.