Home / 71,991.17-99,350.52-40,166.22

Finding the Fourth Proportional to 71,991.17, 99,350.52 and 40,166.22

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Solution

The fourth proportional to 71,991.17, 99,350.52 and 40,166.22 is: 55,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,991.17 : 99,350.52 = 40,166.22 : x
  2. Step 2: Convert to fraction form
    71,991.17/99,350.52 = 40,166.22/x
  3. Step 3: Cross multiply
    71,991.17x = 99,350.52 × 40,166.22
  4. Step 4: Simplify right side
    71,991.17x = 3,990,534,843.43
  5. Step 5: Solve for x
    x = 3,990,534,843.43/71,991.17
  6. Step 6: Final answer
    x = 55,430.89

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1.5x scale

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.