Home / 85,067.60-127,584.54-42,936.87

Finding the Fourth Proportional to 85,067.60, 127,584.54 and 42,936.87

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Solution

The fourth proportional to 85,067.60, 127,584.54 and 42,936.87 is: 64,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067.60 : 127,584.54 = 42,936.87 : x
  2. Step 2: Convert to fraction form
    85,067.60/127,584.54 = 42,936.87/x
  3. Step 3: Cross multiply
    85,067.60x = 127,584.54 × 42,936.87
  4. Step 4: Simplify right side
    85,067.60x = 5,478,080,807.99
  5. Step 5: Solve for x
    x = 5,478,080,807.99/85,067.60
  6. Step 6: Final answer
    x = 64,396.80

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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.