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Finding the Third Proportional to 58,640.63 and 128,037.38

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Solution

The third proportional to 58,640.63 and 128,037.38 is: 279,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,640.63 : 128,037.38 = 128,037.38 : x
  2. Step 2: Convert to fraction form
    58,640.63/128,037.38 = 128,037.38/x
  3. Step 3: Cross multiply
    58,640.63x = 128,037.38 × 128,037.38
  4. Step 4: Simplify right side
    58,640.63x = 16,393,569,396.89
  5. Step 5: Solve for x
    x = 16,393,569,396.89/58,640.63
  6. Step 6: Final answer
    x = 279,559.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.