Home / 71,994.16-99,350.76-40,166.56

Finding the Fourth Proportional to 71,994.16, 99,350.76 and 40,166.56

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Solution

The fourth proportional to 71,994.16, 99,350.76 and 40,166.56 is: 55,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,994.16 : 99,350.76 = 40,166.56 : x
  2. Step 2: Convert to fraction form
    71,994.16/99,350.76 = 40,166.56/x
  3. Step 3: Cross multiply
    71,994.16x = 99,350.76 × 40,166.56
  4. Step 4: Simplify right side
    71,994.16x = 3,990,578,262.59
  5. Step 5: Solve for x
    x = 3,990,578,262.59/71,994.16
  6. Step 6: Final answer
    x = 55,429.19

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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.