Home / 78,710.14-108,620.04-44,718.69

Finding the Fourth Proportional to 78,710.14, 108,620.04 and 44,718.69

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Solution

The fourth proportional to 78,710.14, 108,620.04 and 44,718.69 is: 61,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,710.14 : 108,620.04 = 44,718.69 : x
  2. Step 2: Convert to fraction form
    78,710.14/108,620.04 = 44,718.69/x
  3. Step 3: Cross multiply
    78,710.14x = 108,620.04 × 44,718.69
  4. Step 4: Simplify right side
    78,710.14x = 4,857,345,129.85
  5. Step 5: Solve for x
    x = 4,857,345,129.85/78,710.14
  6. Step 6: Final answer
    x = 61,711.81

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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.