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Finding the Fourth Proportional to 64,509.60, 96,634.80 and 36,775.20

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Solution

The fourth proportional to 64,509.60, 96,634.80 and 36,775.20 is: 55,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,509.60 : 96,634.80 = 36,775.20 : x
  2. Step 2: Convert to fraction form
    64,509.60/96,634.80 = 36,775.20/x
  3. Step 3: Cross multiply
    64,509.60x = 96,634.80 × 36,775.20
  4. Step 4: Simplify right side
    64,509.60x = 3,553,764,096.96
  5. Step 5: Solve for x
    x = 3,553,764,096.96/64,509.60
  6. Step 6: Final answer
    x = 55,088.92

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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.