Home / 71,942.66-99,283.54-40,117.68

Finding the Fourth Proportional to 71,942.66, 99,283.54 and 40,117.68

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Solution

The fourth proportional to 71,942.66, 99,283.54 and 40,117.68 is: 55,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,942.66 : 99,283.54 = 40,117.68 : x
  2. Step 2: Convert to fraction form
    71,942.66/99,283.54 = 40,117.68/x
  3. Step 3: Cross multiply
    71,942.66x = 99,283.54 × 40,117.68
  4. Step 4: Simplify right side
    71,942.66x = 3,983,025,286.99
  5. Step 5: Solve for x
    x = 3,983,025,286.99/71,942.66
  6. Step 6: Final answer
    x = 55,363.89

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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.