Home / 65,181-89,949.78-36,886.76

Finding the Fourth Proportional to 65,181, 89,949.78 and 36,886.76

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Solution

The fourth proportional to 65,181, 89,949.78 and 36,886.76 is: 50,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,181 : 89,949.78 = 36,886.76 : x
  2. Step 2: Convert to fraction form
    65,181/89,949.78 = 36,886.76/x
  3. Step 3: Cross multiply
    65,181x = 89,949.78 × 36,886.76
  4. Step 4: Simplify right side
    65,181x = 3,317,955,497.16
  5. Step 5: Solve for x
    x = 3,317,955,497.16/65,181
  6. Step 6: Final answer
    x = 50,903.72

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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.