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Finding the Fourth Proportional to 76,410.80, 114,664.80 and 44,820.80

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Solution

The fourth proportional to 76,410.80, 114,664.80 and 44,820.80 is: 67,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,410.80 : 114,664.80 = 44,820.80 : x
  2. Step 2: Convert to fraction form
    76,410.80/114,664.80 = 44,820.80/x
  3. Step 3: Cross multiply
    76,410.80x = 114,664.80 × 44,820.80
  4. Step 4: Simplify right side
    76,410.80x = 5,139,368,067.84
  5. Step 5: Solve for x
    x = 5,139,368,067.84/76,410.80
  6. Step 6: Final answer
    x = 67,259.71

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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.