Home / 57,770.20-86,655.30-47,272.60

Finding the Fourth Proportional to 57,770.20, 86,655.30 and 47,272.60

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Solution

The fourth proportional to 57,770.20, 86,655.30 and 47,272.60 is: 70,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.20 : 86,655.30 = 47,272.60 : x
  2. Step 2: Convert to fraction form
    57,770.20/86,655.30 = 47,272.60/x
  3. Step 3: Cross multiply
    57,770.20x = 86,655.30 × 47,272.60
  4. Step 4: Simplify right side
    57,770.20x = 4,096,421,334.78
  5. Step 5: Solve for x
    x = 4,096,421,334.78/57,770.20
  6. Step 6: Final answer
    x = 70,908.90

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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.