Home / 71,439.28-107,137.04-49,394.32

Finding the Fourth Proportional to 71,439.28, 107,137.04 and 49,394.32

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Solution

The fourth proportional to 71,439.28, 107,137.04 and 49,394.32 is: 74,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.28 : 107,137.04 = 49,394.32 : x
  2. Step 2: Convert to fraction form
    71,439.28/107,137.04 = 49,394.32/x
  3. Step 3: Cross multiply
    71,439.28x = 107,137.04 × 49,394.32
  4. Step 4: Simplify right side
    71,439.28x = 5,291,960,454.96
  5. Step 5: Solve for x
    x = 5,291,960,454.96/71,439.28
  6. Step 6: Final answer
    x = 74,076.35

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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.