Home / 78,329.80-108,095.26-42,519.83

Finding the Fourth Proportional to 78,329.80, 108,095.26 and 42,519.83

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Solution

The fourth proportional to 78,329.80, 108,095.26 and 42,519.83 is: 58,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,329.80 : 108,095.26 = 42,519.83 : x
  2. Step 2: Convert to fraction form
    78,329.80/108,095.26 = 42,519.83/x
  3. Step 3: Cross multiply
    78,329.80x = 108,095.26 × 42,519.83
  4. Step 4: Simplify right side
    78,329.80x = 4,596,192,350.37
  5. Step 5: Solve for x
    x = 4,596,192,350.37/78,329.80
  6. Step 6: Final answer
    x = 58,677.44

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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.