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Finding the Fourth Proportional to 84,779.56, 127,169.40 and 29,375.56

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Solution

The fourth proportional to 84,779.56, 127,169.40 and 29,375.56 is: 44,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,779.56 : 127,169.40 = 29,375.56 : x
  2. Step 2: Convert to fraction form
    84,779.56/127,169.40 = 29,375.56/x
  3. Step 3: Cross multiply
    84,779.56x = 127,169.40 × 29,375.56
  4. Step 4: Simplify right side
    84,779.56x = 3,735,672,339.86
  5. Step 5: Solve for x
    x = 3,735,672,339.86/84,779.56
  6. Step 6: Final answer
    x = 44,063.36

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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.