Home / 57,860.20-86,768.70-40,277.80

Finding the Fourth Proportional to 57,860.20, 86,768.70 and 40,277.80

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Solution

The fourth proportional to 57,860.20, 86,768.70 and 40,277.80 is: 60,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,860.20 : 86,768.70 = 40,277.80 : x
  2. Step 2: Convert to fraction form
    57,860.20/86,768.70 = 40,277.80/x
  3. Step 3: Cross multiply
    57,860.20x = 86,768.70 × 40,277.80
  4. Step 4: Simplify right side
    57,860.20x = 3,494,852,344.86
  5. Step 5: Solve for x
    x = 3,494,852,344.86/57,860.20
  6. Step 6: Final answer
    x = 60,401.66

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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.