Home / 65,181.12-89,954.40-36,886.80

Finding the Fourth Proportional to 65,181.12, 89,954.40 and 36,886.80

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Solution

The fourth proportional to 65,181.12, 89,954.40 and 36,886.80 is: 50,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,181.12 : 89,954.40 = 36,886.80 : x
  2. Step 2: Convert to fraction form
    65,181.12/89,954.40 = 36,886.80/x
  3. Step 3: Cross multiply
    65,181.12x = 89,954.40 × 36,886.80
  4. Step 4: Simplify right side
    65,181.12x = 3,318,129,961.92
  5. Step 5: Solve for x
    x = 3,318,129,961.92/65,181.12
  6. Step 6: Final answer
    x = 50,906.30

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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.