Home / 76,779.82-115,115.19-29,354.95

Finding the Fourth Proportional to 76,779.82, 115,115.19 and 29,354.95

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Solution

The fourth proportional to 76,779.82, 115,115.19 and 29,354.95 is: 44,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779.82 : 115,115.19 = 29,354.95 : x
  2. Step 2: Convert to fraction form
    76,779.82/115,115.19 = 29,354.95/x
  3. Step 3: Cross multiply
    76,779.82x = 115,115.19 × 29,354.95
  4. Step 4: Simplify right side
    76,779.82x = 3,379,200,646.69
  5. Step 5: Solve for x
    x = 3,379,200,646.69/76,779.82
  6. Step 6: Final answer
    x = 44,011.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.