Home / 71,984.21-99,341.24-40,153.10

Finding the Fourth Proportional to 71,984.21, 99,341.24 and 40,153.10

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Solution

The fourth proportional to 71,984.21, 99,341.24 and 40,153.10 is: 55,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,984.21 : 99,341.24 = 40,153.10 : x
  2. Step 2: Convert to fraction form
    71,984.21/99,341.24 = 40,153.10/x
  3. Step 3: Cross multiply
    71,984.21x = 99,341.24 × 40,153.10
  4. Step 4: Simplify right side
    71,984.21x = 3,988,858,046.37
  5. Step 5: Solve for x
    x = 3,988,858,046.37/71,984.21
  6. Step 6: Final answer
    x = 55,412.96

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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.