Home / 81,147.40-111,973.26-45,336.04

Finding the Fourth Proportional to 81,147.40, 111,973.26 and 45,336.04

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Solution

The fourth proportional to 81,147.40, 111,973.26 and 45,336.04 is: 62,558.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,147.40 : 111,973.26 = 45,336.04 : x
  2. Step 2: Convert to fraction form
    81,147.40/111,973.26 = 45,336.04/x
  3. Step 3: Cross multiply
    81,147.40x = 111,973.26 × 45,336.04
  4. Step 4: Simplify right side
    81,147.40x = 5,076,424,194.29
  5. Step 5: Solve for x
    x = 5,076,424,194.29/81,147.40
  6. Step 6: Final answer
    x = 62,558.06

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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.