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Finding the Third Proportional to 28,070 and 61,708

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Solution

The third proportional to 28,070 and 61,708 is: 135,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070 : 61,708 = 61,708 : x
  2. Step 2: Convert to fraction form
    28,070/61,708 = 61,708/x
  3. Step 3: Cross multiply
    28,070x = 61,708 × 61,708
  4. Step 4: Simplify right side
    28,070x = 3,807,877,264
  5. Step 5: Solve for x
    x = 3,807,877,264/28,070
  6. Step 6: Final answer
    x = 135,656.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.