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Finding the Fourth Proportional to 55,212.88, 82,807.70 and 17,776.30

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Solution

The fourth proportional to 55,212.88, 82,807.70 and 17,776.30 is: 26,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.88 : 82,807.70 = 17,776.30 : x
  2. Step 2: Convert to fraction form
    55,212.88/82,807.70 = 17,776.30/x
  3. Step 3: Cross multiply
    55,212.88x = 82,807.70 × 17,776.30
  4. Step 4: Simplify right side
    55,212.88x = 1,472,014,517.51
  5. Step 5: Solve for x
    x = 1,472,014,517.51/55,212.88
  6. Step 6: Final answer
    x = 26,660.71

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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.