Home / 68,722.48-103,551.82-56,515.87

Finding the Fourth Proportional to 68,722.48, 103,551.82 and 56,515.87

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Solution

The fourth proportional to 68,722.48, 103,551.82 and 56,515.87 is: 85,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722.48 : 103,551.82 = 56,515.87 : x
  2. Step 2: Convert to fraction form
    68,722.48/103,551.82 = 56,515.87/x
  3. Step 3: Cross multiply
    68,722.48x = 103,551.82 × 56,515.87
  4. Step 4: Simplify right side
    68,722.48x = 5,852,321,197.38
  5. Step 5: Solve for x
    x = 5,852,321,197.38/68,722.48
  6. Step 6: Final answer
    x = 85,158.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.