Home / 57,814.20-86,699.70-40,231.80

Finding the Fourth Proportional to 57,814.20, 86,699.70 and 40,231.80

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Solution

The fourth proportional to 57,814.20, 86,699.70 and 40,231.80 is: 60,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,814.20 : 86,699.70 = 40,231.80 : x
  2. Step 2: Convert to fraction form
    57,814.20/86,699.70 = 40,231.80/x
  3. Step 3: Cross multiply
    57,814.20x = 86,699.70 × 40,231.80
  4. Step 4: Simplify right side
    57,814.20x = 3,488,084,990.46
  5. Step 5: Solve for x
    x = 3,488,084,990.46/57,814.20
  6. Step 6: Final answer
    x = 60,332.67

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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.