Home / 74,941.12-103,439.60-43,120.27

Finding the Fourth Proportional to 74,941.12, 103,439.60 and 43,120.27

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Solution

The fourth proportional to 74,941.12, 103,439.60 and 43,120.27 is: 59,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,941.12 : 103,439.60 = 43,120.27 : x
  2. Step 2: Convert to fraction form
    74,941.12/103,439.60 = 43,120.27/x
  3. Step 3: Cross multiply
    74,941.12x = 103,439.60 × 43,120.27
  4. Step 4: Simplify right side
    74,941.12x = 4,460,343,480.69
  5. Step 5: Solve for x
    x = 4,460,343,480.69/74,941.12
  6. Step 6: Final answer
    x = 59,517.97

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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.