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Finding the Fourth Proportional to 88,472, 132,396.30 and 55,207.70

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Solution

The fourth proportional to 88,472, 132,396.30 and 55,207.70 is: 82,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,472 : 132,396.30 = 55,207.70 : x
  2. Step 2: Convert to fraction form
    88,472/132,396.30 = 55,207.70/x
  3. Step 3: Cross multiply
    88,472x = 132,396.30 × 55,207.70
  4. Step 4: Simplify right side
    88,472x = 7,309,295,211.51
  5. Step 5: Solve for x
    x = 7,309,295,211.51/88,472
  6. Step 6: Final answer
    x = 82,617.05

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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.