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Finding the Fourth Proportional to 77,433.60, 116,143.68 and 54,850.88

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Solution

The fourth proportional to 77,433.60, 116,143.68 and 54,850.88 is: 82,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,433.60 : 116,143.68 = 54,850.88 : x
  2. Step 2: Convert to fraction form
    77,433.60/116,143.68 = 54,850.88/x
  3. Step 3: Cross multiply
    77,433.60x = 116,143.68 × 54,850.88
  4. Step 4: Simplify right side
    77,433.60x = 6,370,583,054.44
  5. Step 5: Solve for x
    x = 6,370,583,054.44/77,433.60
  6. Step 6: Final answer
    x = 82,271.56

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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.