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Finding the Fourth Proportional to 71,334.10, 107,077.95 and 40,230.10

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Solution

The fourth proportional to 71,334.10, 107,077.95 and 40,230.10 is: 60,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,334.10 : 107,077.95 = 40,230.10 : x
  2. Step 2: Convert to fraction form
    71,334.10/107,077.95 = 40,230.10/x
  3. Step 3: Cross multiply
    71,334.10x = 107,077.95 × 40,230.10
  4. Step 4: Simplify right side
    71,334.10x = 4,307,756,636.30
  5. Step 5: Solve for x
    x = 4,307,756,636.30/71,334.10
  6. Step 6: Final answer
    x = 60,388.46

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1.5x scale

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.