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Finding the Fourth Proportional to 68,015.57, 101,565.02 and 55,560.20

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Solution

The fourth proportional to 68,015.57, 101,565.02 and 55,560.20 is: 82,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,015.57 : 101,565.02 = 55,560.20 : x
  2. Step 2: Convert to fraction form
    68,015.57/101,565.02 = 55,560.20/x
  3. Step 3: Cross multiply
    68,015.57x = 101,565.02 × 55,560.20
  4. Step 4: Simplify right side
    68,015.57x = 5,642,972,455.28
  5. Step 5: Solve for x
    x = 5,642,972,455.28/68,015.57
  6. Step 6: Final answer
    x = 82,965.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.