Home / 77,170.91-115,677.42-52,213.60

Finding the Fourth Proportional to 77,170.91, 115,677.42 and 52,213.60

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Solution

The fourth proportional to 77,170.91, 115,677.42 and 52,213.60 is: 78,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,170.91 : 115,677.42 = 52,213.60 : x
  2. Step 2: Convert to fraction form
    77,170.91/115,677.42 = 52,213.60/x
  3. Step 3: Cross multiply
    77,170.91x = 115,677.42 × 52,213.60
  4. Step 4: Simplify right side
    77,170.91x = 6,039,934,128.72
  5. Step 5: Solve for x
    x = 6,039,934,128.72/77,170.91
  6. Step 6: Final answer
    x = 78,266.98

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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.