Home / 81,469.12-122,244.96-37,089.76

Finding the Fourth Proportional to 81,469.12, 122,244.96 and 37,089.76

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Solution

The fourth proportional to 81,469.12, 122,244.96 and 37,089.76 is: 55,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,469.12 : 122,244.96 = 37,089.76 : x
  2. Step 2: Convert to fraction form
    81,469.12/122,244.96 = 37,089.76/x
  3. Step 3: Cross multiply
    81,469.12x = 122,244.96 × 37,089.76
  4. Step 4: Simplify right side
    81,469.12x = 4,534,036,227.61
  5. Step 5: Solve for x
    x = 4,534,036,227.61/81,469.12
  6. Step 6: Final answer
    x = 55,653.43

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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.