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Finding the Fourth Proportional to 68,015.10, 102,022.65 and 57,954.90

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Solution

The fourth proportional to 68,015.10, 102,022.65 and 57,954.90 is: 86,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,015.10 : 102,022.65 = 57,954.90 : x
  2. Step 2: Convert to fraction form
    68,015.10/102,022.65 = 57,954.90/x
  3. Step 3: Cross multiply
    68,015.10x = 102,022.65 × 57,954.90
  4. Step 4: Simplify right side
    68,015.10x = 5,912,712,478.49
  5. Step 5: Solve for x
    x = 5,912,712,478.49/68,015.10
  6. Step 6: Final answer
    x = 86,932.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.