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Finding the Fourth Proportional to 76,365.20, 114,576.60 and 36,957.20

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Solution

The fourth proportional to 76,365.20, 114,576.60 and 36,957.20 is: 55,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,365.20 : 114,576.60 = 36,957.20 : x
  2. Step 2: Convert to fraction form
    76,365.20/114,576.60 = 36,957.20/x
  3. Step 3: Cross multiply
    76,365.20x = 114,576.60 × 36,957.20
  4. Step 4: Simplify right side
    76,365.20x = 4,234,430,321.52
  5. Step 5: Solve for x
    x = 4,234,430,321.52/76,365.20
  6. Step 6: Final answer
    x = 55,449.74

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1.5x scale

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.