Home / 78,929.93-108,891.05-58,282.90

Finding the Fourth Proportional to 78,929.93, 108,891.05 and 58,282.90

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Solution

The fourth proportional to 78,929.93, 108,891.05 and 58,282.90 is: 80,406.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.93 : 108,891.05 = 58,282.90 : x
  2. Step 2: Convert to fraction form
    78,929.93/108,891.05 = 58,282.90/x
  3. Step 3: Cross multiply
    78,929.93x = 108,891.05 × 58,282.90
  4. Step 4: Simplify right side
    78,929.93x = 6,346,485,942.24
  5. Step 5: Solve for x
    x = 6,346,485,942.24/78,929.93
  6. Step 6: Final answer
    x = 80,406.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.