Home / 71,942.96-99,281.82-40,113.92

Finding the Fourth Proportional to 71,942.96, 99,281.82 and 40,113.92

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Solution

The fourth proportional to 71,942.96, 99,281.82 and 40,113.92 is: 55,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,942.96 : 99,281.82 = 40,113.92 : x
  2. Step 2: Convert to fraction form
    71,942.96/99,281.82 = 40,113.92/x
  3. Step 3: Cross multiply
    71,942.96x = 99,281.82 × 40,113.92
  4. Step 4: Simplify right side
    71,942.96x = 3,982,582,984.93
  5. Step 5: Solve for x
    x = 3,982,582,984.93/71,942.96
  6. Step 6: Final answer
    x = 55,357.51

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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.