Home / 80,108.72-110,552.94-51,814.40

Finding the Fourth Proportional to 80,108.72, 110,552.94 and 51,814.40

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Solution

The fourth proportional to 80,108.72, 110,552.94 and 51,814.40 is: 71,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,108.72 : 110,552.94 = 51,814.40 : x
  2. Step 2: Convert to fraction form
    80,108.72/110,552.94 = 51,814.40/x
  3. Step 3: Cross multiply
    80,108.72x = 110,552.94 × 51,814.40
  4. Step 4: Simplify right side
    80,108.72x = 5,728,234,254.34
  5. Step 5: Solve for x
    x = 5,728,234,254.34/80,108.72
  6. Step 6: Final answer
    x = 71,505.75

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1.5x scale

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.