Home / 67,515.72-93,179.61-40,671.78

Finding the Fourth Proportional to 67,515.72, 93,179.61 and 40,671.78

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Solution

The fourth proportional to 67,515.72, 93,179.61 and 40,671.78 is: 56,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,515.72 : 93,179.61 = 40,671.78 : x
  2. Step 2: Convert to fraction form
    67,515.72/93,179.61 = 40,671.78/x
  3. Step 3: Cross multiply
    67,515.72x = 93,179.61 × 40,671.78
  4. Step 4: Simplify right side
    67,515.72x = 3,789,780,598.41
  5. Step 5: Solve for x
    x = 3,789,780,598.41/67,515.72
  6. Step 6: Final answer
    x = 56,131.83

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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.