Home / 71,832.65-99,129.24-40,007.88

Finding the Fourth Proportional to 71,832.65, 99,129.24 and 40,007.88

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Solution

The fourth proportional to 71,832.65, 99,129.24 and 40,007.88 is: 55,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,832.65 : 99,129.24 = 40,007.88 : x
  2. Step 2: Convert to fraction form
    71,832.65/99,129.24 = 40,007.88/x
  3. Step 3: Cross multiply
    71,832.65x = 99,129.24 × 40,007.88
  4. Step 4: Simplify right side
    71,832.65x = 3,965,950,738.41
  5. Step 5: Solve for x
    x = 3,965,950,738.41/71,832.65
  6. Step 6: Final answer
    x = 55,210.98

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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.