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Finding the Third Proportional to 21,075.75 and 45,141.19

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Solution

The third proportional to 21,075.75 and 45,141.19 is: 96,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.75 : 45,141.19 = 45,141.19 : x
  2. Step 2: Convert to fraction form
    21,075.75/45,141.19 = 45,141.19/x
  3. Step 3: Cross multiply
    21,075.75x = 45,141.19 × 45,141.19
  4. Step 4: Simplify right side
    21,075.75x = 2,037,726,808.91
  5. Step 5: Solve for x
    x = 2,037,726,808.91/21,075.75
  6. Step 6: Final answer
    x = 96,685.85

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.