Home / 71,115.30-98,141.96-40,900.61

Finding the Fourth Proportional to 71,115.30, 98,141.96 and 40,900.61

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Solution

The fourth proportional to 71,115.30, 98,141.96 and 40,900.61 is: 56,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,115.30 : 98,141.96 = 40,900.61 : x
  2. Step 2: Convert to fraction form
    71,115.30/98,141.96 = 40,900.61/x
  3. Step 3: Cross multiply
    71,115.30x = 98,141.96 × 40,900.61
  4. Step 4: Simplify right side
    71,115.30x = 4,014,066,378.20
  5. Step 5: Solve for x
    x = 4,014,066,378.20/71,115.30
  6. Step 6: Final answer
    x = 56,444.48

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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.