Home / 79,981.41-119,892.54-37,786.75

Finding the Fourth Proportional to 79,981.41, 119,892.54 and 37,786.75

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Solution

The fourth proportional to 79,981.41, 119,892.54 and 37,786.75 is: 56,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,981.41 : 119,892.54 = 37,786.75 : x
  2. Step 2: Convert to fraction form
    79,981.41/119,892.54 = 37,786.75/x
  3. Step 3: Cross multiply
    79,981.41x = 119,892.54 × 37,786.75
  4. Step 4: Simplify right side
    79,981.41x = 4,530,348,901.26
  5. Step 5: Solve for x
    x = 4,530,348,901.26/79,981.41
  6. Step 6: Final answer
    x = 56,642.52

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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.