Home / 71,869.41-99,179.91-40,039.44

Finding the Fourth Proportional to 71,869.41, 99,179.91 and 40,039.44

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Solution

The fourth proportional to 71,869.41, 99,179.91 and 40,039.44 is: 55,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869.41 : 99,179.91 = 40,039.44 : x
  2. Step 2: Convert to fraction form
    71,869.41/99,179.91 = 40,039.44/x
  3. Step 3: Cross multiply
    71,869.41x = 99,179.91 × 40,039.44
  4. Step 4: Simplify right side
    71,869.41x = 3,971,108,055.65
  5. Step 5: Solve for x
    x = 3,971,108,055.65/71,869.41
  6. Step 6: Final answer
    x = 55,254.50

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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.