Home / 65,194.12-89,965.56-36,899.20

Finding the Fourth Proportional to 65,194.12, 89,965.56 and 36,899.20

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Solution

The fourth proportional to 65,194.12, 89,965.56 and 36,899.20 is: 50,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,194.12 : 89,965.56 = 36,899.20 : x
  2. Step 2: Convert to fraction form
    65,194.12/89,965.56 = 36,899.20/x
  3. Step 3: Cross multiply
    65,194.12x = 89,965.56 × 36,899.20
  4. Step 4: Simplify right side
    65,194.12x = 3,319,657,191.55
  5. Step 5: Solve for x
    x = 3,319,657,191.55/65,194.12
  6. Step 6: Final answer
    x = 50,919.58

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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.