Home / 81,711.60-122,567.40-32,463.60

Finding the Fourth Proportional to 81,711.60, 122,567.40 and 32,463.60

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Solution

The fourth proportional to 81,711.60, 122,567.40 and 32,463.60 is: 48,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,711.60 : 122,567.40 = 32,463.60 : x
  2. Step 2: Convert to fraction form
    81,711.60/122,567.40 = 32,463.60/x
  3. Step 3: Cross multiply
    81,711.60x = 122,567.40 × 32,463.60
  4. Step 4: Simplify right side
    81,711.60x = 3,978,979,046.64
  5. Step 5: Solve for x
    x = 3,978,979,046.64/81,711.60
  6. Step 6: Final answer
    x = 48,695.40

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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.