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Finding the Fourth Proportional to 86,824.80, 130,251.60 and 36,928.80

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Solution

The fourth proportional to 86,824.80, 130,251.60 and 36,928.80 is: 55,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824.80 : 130,251.60 = 36,928.80 : x
  2. Step 2: Convert to fraction form
    86,824.80/130,251.60 = 36,928.80/x
  3. Step 3: Cross multiply
    86,824.80x = 130,251.60 × 36,928.80
  4. Step 4: Simplify right side
    86,824.80x = 4,810,035,286.08
  5. Step 5: Solve for x
    x = 4,810,035,286.08/86,824.80
  6. Step 6: Final answer
    x = 55,399.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.