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Finding the Third Proportional to 56,526 and 85,518

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Solution

The third proportional to 56,526 and 85,518 is: 129,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,526 : 85,518 = 85,518 : x
  2. Step 2: Convert to fraction form
    56,526/85,518 = 85,518/x
  3. Step 3: Cross multiply
    56,526x = 85,518 × 85,518
  4. Step 4: Simplify right side
    56,526x = 7,313,328,324
  5. Step 5: Solve for x
    x = 7,313,328,324/56,526
  6. Step 6: Final answer
    x = 129,379.90

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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.