Home / 71,843.07-99,143.43-40,011.96

Finding the Fourth Proportional to 71,843.07, 99,143.43 and 40,011.96

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Solution

The fourth proportional to 71,843.07, 99,143.43 and 40,011.96 is: 55,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,843.07 : 99,143.43 = 40,011.96 : x
  2. Step 2: Convert to fraction form
    71,843.07/99,143.43 = 40,011.96/x
  3. Step 3: Cross multiply
    71,843.07x = 99,143.43 × 40,011.96
  4. Step 4: Simplify right side
    71,843.07x = 3,966,922,955.42
  5. Step 5: Solve for x
    x = 3,966,922,955.42/71,843.07
  6. Step 6: Final answer
    x = 55,216.50

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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.