Home / 78,467.17-108,282.42-44,478.79

Finding the Fourth Proportional to 78,467.17, 108,282.42 and 44,478.79

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Solution

The fourth proportional to 78,467.17, 108,282.42 and 44,478.79 is: 61,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,467.17 : 108,282.42 = 44,478.79 : x
  2. Step 2: Convert to fraction form
    78,467.17/108,282.42 = 44,478.79/x
  3. Step 3: Cross multiply
    78,467.17x = 108,282.42 × 44,478.79
  4. Step 4: Simplify right side
    78,467.17x = 4,816,271,019.87
  5. Step 5: Solve for x
    x = 4,816,271,019.87/78,467.17
  6. Step 6: Final answer
    x = 61,379.44

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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.