Home / 81,988.77-122,940.94-37,577.49

Finding the Fourth Proportional to 81,988.77, 122,940.94 and 37,577.49

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Solution

The fourth proportional to 81,988.77, 122,940.94 and 37,577.49 is: 56,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,988.77 : 122,940.94 = 37,577.49 : x
  2. Step 2: Convert to fraction form
    81,988.77/122,940.94 = 37,577.49/x
  3. Step 3: Cross multiply
    81,988.77x = 122,940.94 × 37,577.49
  4. Step 4: Simplify right side
    81,988.77x = 4,619,811,943.44
  5. Step 5: Solve for x
    x = 4,619,811,943.44/81,988.77
  6. Step 6: Final answer
    x = 56,346.89

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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.