Home / 75,844.20-113,784.62-28,459.68

Finding the Fourth Proportional to 75,844.20, 113,784.62 and 28,459.68

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Solution

The fourth proportional to 75,844.20, 113,784.62 and 28,459.68 is: 42,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,844.20 : 113,784.62 = 28,459.68 : x
  2. Step 2: Convert to fraction form
    75,844.20/113,784.62 = 28,459.68/x
  3. Step 3: Cross multiply
    75,844.20x = 113,784.62 × 28,459.68
  4. Step 4: Simplify right side
    75,844.20x = 3,238,273,731.82
  5. Step 5: Solve for x
    x = 3,238,273,731.82/75,844.20
  6. Step 6: Final answer
    x = 42,696.39

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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.