Home / 74,445.75-102,735.14-40,911.75

Finding the Fourth Proportional to 74,445.75, 102,735.14 and 40,911.75

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Solution

The fourth proportional to 74,445.75, 102,735.14 and 40,911.75 is: 56,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445.75 : 102,735.14 = 40,911.75 : x
  2. Step 2: Convert to fraction form
    74,445.75/102,735.14 = 40,911.75/x
  3. Step 3: Cross multiply
    74,445.75x = 102,735.14 × 40,911.75
  4. Step 4: Simplify right side
    74,445.75x = 4,203,074,363.90
  5. Step 5: Solve for x
    x = 4,203,074,363.90/74,445.75
  6. Step 6: Final answer
    x = 56,458.22

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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.