Home / 86,305.28-119,112.64-48,586.88

Finding the Fourth Proportional to 86,305.28, 119,112.64 and 48,586.88

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Solution

The fourth proportional to 86,305.28, 119,112.64 and 48,586.88 is: 67,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305.28 : 119,112.64 = 48,586.88 : x
  2. Step 2: Convert to fraction form
    86,305.28/119,112.64 = 48,586.88/x
  3. Step 3: Cross multiply
    86,305.28x = 119,112.64 × 48,586.88
  4. Step 4: Simplify right side
    86,305.28x = 5,787,311,546.16
  5. Step 5: Solve for x
    x = 5,787,311,546.16/86,305.28
  6. Step 6: Final answer
    x = 67,056.29

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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.