Home / 81,114.59-111,936.96-45,305.12

Finding the Fourth Proportional to 81,114.59, 111,936.96 and 45,305.12

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Solution

The fourth proportional to 81,114.59, 111,936.96 and 45,305.12 is: 62,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,114.59 : 111,936.96 = 45,305.12 : x
  2. Step 2: Convert to fraction form
    81,114.59/111,936.96 = 45,305.12/x
  3. Step 3: Cross multiply
    81,114.59x = 111,936.96 × 45,305.12
  4. Step 4: Simplify right side
    81,114.59x = 5,071,316,845.55
  5. Step 5: Solve for x
    x = 5,071,316,845.55/81,114.59
  6. Step 6: Final answer
    x = 62,520.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.