Home / 78,316.75-108,051.38-44,321.86

Finding the Fourth Proportional to 78,316.75, 108,051.38 and 44,321.86

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Solution

The fourth proportional to 78,316.75, 108,051.38 and 44,321.86 is: 61,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,316.75 : 108,051.38 = 44,321.86 : x
  2. Step 2: Convert to fraction form
    78,316.75/108,051.38 = 44,321.86/x
  3. Step 3: Cross multiply
    78,316.75x = 108,051.38 × 44,321.86
  4. Step 4: Simplify right side
    78,316.75x = 4,789,037,596.91
  5. Step 5: Solve for x
    x = 4,789,037,596.91/78,316.75
  6. Step 6: Final answer
    x = 61,149.60

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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.