Home / 78,747.26-108,683.68-46,934.61

Finding the Fourth Proportional to 78,747.26, 108,683.68 and 46,934.61

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Solution

The fourth proportional to 78,747.26, 108,683.68 and 46,934.61 is: 64,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,747.26 : 108,683.68 = 46,934.61 : x
  2. Step 2: Convert to fraction form
    78,747.26/108,683.68 = 46,934.61/x
  3. Step 3: Cross multiply
    78,747.26x = 108,683.68 × 46,934.61
  4. Step 4: Simplify right side
    78,747.26x = 5,101,026,134.16
  5. Step 5: Solve for x
    x = 5,101,026,134.16/78,747.26
  6. Step 6: Final answer
    x = 64,777.19

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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.