Home / 68,778.47-94,913.42-38,563.76

Finding the Fourth Proportional to 68,778.47, 94,913.42 and 38,563.76

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Solution

The fourth proportional to 68,778.47, 94,913.42 and 38,563.76 is: 53,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,778.47 : 94,913.42 = 38,563.76 : x
  2. Step 2: Convert to fraction form
    68,778.47/94,913.42 = 38,563.76/x
  3. Step 3: Cross multiply
    68,778.47x = 94,913.42 × 38,563.76
  4. Step 4: Simplify right side
    68,778.47x = 3,660,217,682.27
  5. Step 5: Solve for x
    x = 3,660,217,682.27/68,778.47
  6. Step 6: Final answer
    x = 53,217.50

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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.