Home / 71,730.72-107,466.30-40,102.92

Finding the Fourth Proportional to 71,730.72, 107,466.30 and 40,102.92

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Solution

The fourth proportional to 71,730.72, 107,466.30 and 40,102.92 is: 60,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,730.72 : 107,466.30 = 40,102.92 : x
  2. Step 2: Convert to fraction form
    71,730.72/107,466.30 = 40,102.92/x
  3. Step 3: Cross multiply
    71,730.72x = 107,466.30 × 40,102.92
  4. Step 4: Simplify right side
    71,730.72x = 4,309,712,431.60
  5. Step 5: Solve for x
    x = 4,309,712,431.60/71,730.72
  6. Step 6: Final answer
    x = 60,081.82

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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.