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Finding the Third Proportional to 28,805.63 and 66,728.81

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Solution

The third proportional to 28,805.63 and 66,728.81 is: 154,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.63 : 66,728.81 = 66,728.81 : x
  2. Step 2: Convert to fraction form
    28,805.63/66,728.81 = 66,728.81/x
  3. Step 3: Cross multiply
    28,805.63x = 66,728.81 × 66,728.81
  4. Step 4: Simplify right side
    28,805.63x = 4,452,734,417.66
  5. Step 5: Solve for x
    x = 4,452,734,417.66/28,805.63
  6. Step 6: Final answer
    x = 154,578.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.