Home / 71,986.03-99,342.83-40,154.24

Finding the Fourth Proportional to 71,986.03, 99,342.83 and 40,154.24

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Solution

The fourth proportional to 71,986.03, 99,342.83 and 40,154.24 is: 55,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,986.03 : 99,342.83 = 40,154.24 : x
  2. Step 2: Convert to fraction form
    71,986.03/99,342.83 = 40,154.24/x
  3. Step 3: Cross multiply
    71,986.03x = 99,342.83 × 40,154.24
  4. Step 4: Simplify right side
    71,986.03x = 3,989,035,838.10
  5. Step 5: Solve for x
    x = 3,989,035,838.10/71,986.03
  6. Step 6: Final answer
    x = 55,414.03

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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.