Home / 72,011.04-99,375.21-40,179.93

Finding the Fourth Proportional to 72,011.04, 99,375.21 and 40,179.93

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Solution

The fourth proportional to 72,011.04, 99,375.21 and 40,179.93 is: 55,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.04 : 99,375.21 = 40,179.93 : x
  2. Step 2: Convert to fraction form
    72,011.04/99,375.21 = 40,179.93/x
  3. Step 3: Cross multiply
    72,011.04x = 99,375.21 × 40,179.93
  4. Step 4: Simplify right side
    72,011.04x = 3,992,888,981.54
  5. Step 5: Solve for x
    x = 3,992,888,981.54/72,011.04
  6. Step 6: Final answer
    x = 55,448.29

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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.