Home / 71,986.41-99,341.10-40,153.41

Finding the Fourth Proportional to 71,986.41, 99,341.10 and 40,153.41

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Solution

The fourth proportional to 71,986.41, 99,341.10 and 40,153.41 is: 55,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,986.41 : 99,341.10 = 40,153.41 : x
  2. Step 2: Convert to fraction form
    71,986.41/99,341.10 = 40,153.41/x
  3. Step 3: Cross multiply
    71,986.41x = 99,341.10 × 40,153.41
  4. Step 4: Simplify right side
    71,986.41x = 3,988,883,918.15
  5. Step 5: Solve for x
    x = 3,988,883,918.15/71,986.41
  6. Step 6: Final answer
    x = 55,411.62

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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.