Home / 67,217.76-92,750.40-40,356

Finding the Fourth Proportional to 67,217.76, 92,750.40 and 40,356

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Solution

The fourth proportional to 67,217.76, 92,750.40 and 40,356 is: 55,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,217.76 : 92,750.40 = 40,356 : x
  2. Step 2: Convert to fraction form
    67,217.76/92,750.40 = 40,356/x
  3. Step 3: Cross multiply
    67,217.76x = 92,750.40 × 40,356
  4. Step 4: Simplify right side
    67,217.76x = 3,743,035,142.40
  5. Step 5: Solve for x
    x = 3,743,035,142.40/67,217.76
  6. Step 6: Final answer
    x = 55,685.21

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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.