Home / 56,911.40-85,172.70-52,245.80

Finding the Fourth Proportional to 56,911.40, 85,172.70 and 52,245.80

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Solution

The fourth proportional to 56,911.40, 85,172.70 and 52,245.80 is: 78,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.40 : 85,172.70 = 52,245.80 : x
  2. Step 2: Convert to fraction form
    56,911.40/85,172.70 = 52,245.80/x
  3. Step 3: Cross multiply
    56,911.40x = 85,172.70 × 52,245.80
  4. Step 4: Simplify right side
    56,911.40x = 4,449,915,849.66
  5. Step 5: Solve for x
    x = 4,449,915,849.66/56,911.40
  6. Step 6: Final answer
    x = 78,190.24

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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.