Home / 72,011.84-99,375.96-40,180.68

Finding the Fourth Proportional to 72,011.84, 99,375.96 and 40,180.68

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Solution

The fourth proportional to 72,011.84, 99,375.96 and 40,180.68 is: 55,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.84 : 99,375.96 = 40,180.68 : x
  2. Step 2: Convert to fraction form
    72,011.84/99,375.96 = 40,180.68/x
  3. Step 3: Cross multiply
    72,011.84x = 99,375.96 × 40,180.68
  4. Step 4: Simplify right side
    72,011.84x = 3,992,993,648.45
  5. Step 5: Solve for x
    x = 3,992,993,648.45/72,011.84
  6. Step 6: Final answer
    x = 55,449.13

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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.