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Finding the Fourth Proportional to 85,853.72, 128,779.22 and 23,524.22

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Solution

The fourth proportional to 85,853.72, 128,779.22 and 23,524.22 is: 35,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,853.72 : 128,779.22 = 23,524.22 : x
  2. Step 2: Convert to fraction form
    85,853.72/128,779.22 = 23,524.22/x
  3. Step 3: Cross multiply
    85,853.72x = 128,779.22 × 23,524.22
  4. Step 4: Simplify right side
    85,853.72x = 3,029,430,951.14
  5. Step 5: Solve for x
    x = 3,029,430,951.14/85,853.72
  6. Step 6: Final answer
    x = 35,285.96

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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.