Home / 81,966.90-122,877.45-48,651.60

Finding the Fourth Proportional to 81,966.90, 122,877.45 and 48,651.60

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Solution

The fourth proportional to 81,966.90, 122,877.45 and 48,651.60 is: 72,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966.90 : 122,877.45 = 48,651.60 : x
  2. Step 2: Convert to fraction form
    81,966.90/122,877.45 = 48,651.60/x
  3. Step 3: Cross multiply
    81,966.90x = 122,877.45 × 48,651.60
  4. Step 4: Simplify right side
    81,966.90x = 5,978,184,546.42
  5. Step 5: Solve for x
    x = 5,978,184,546.42/81,966.90
  6. Step 6: Final answer
    x = 72,934.13

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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.