Home / 67,731.09-93,469.58-40,868.42

Finding the Fourth Proportional to 67,731.09, 93,469.58 and 40,868.42

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Solution

The fourth proportional to 67,731.09, 93,469.58 and 40,868.42 is: 56,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,731.09 : 93,469.58 = 40,868.42 : x
  2. Step 2: Convert to fraction form
    67,731.09/93,469.58 = 40,868.42/x
  3. Step 3: Cross multiply
    67,731.09x = 93,469.58 × 40,868.42
  4. Step 4: Simplify right side
    67,731.09x = 3,819,953,380.97
  5. Step 5: Solve for x
    x = 3,819,953,380.97/67,731.09
  6. Step 6: Final answer
    x = 56,398.82

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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.