Home / 71,934.07-99,273.36-40,102.87

Finding the Fourth Proportional to 71,934.07, 99,273.36 and 40,102.87

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Solution

The fourth proportional to 71,934.07, 99,273.36 and 40,102.87 is: 55,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,934.07 : 99,273.36 = 40,102.87 : x
  2. Step 2: Convert to fraction form
    71,934.07/99,273.36 = 40,102.87/x
  3. Step 3: Cross multiply
    71,934.07x = 99,273.36 × 40,102.87
  4. Step 4: Simplify right side
    71,934.07x = 3,981,146,650.54
  5. Step 5: Solve for x
    x = 3,981,146,650.54/71,934.07
  6. Step 6: Final answer
    x = 55,344.38

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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.