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Finding the Third Proportional to 35,426 and 77,440

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Solution

The third proportional to 35,426 and 77,440 is: 169,281.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,426 : 77,440 = 77,440 : x
  2. Step 2: Convert to fraction form
    35,426/77,440 = 77,440/x
  3. Step 3: Cross multiply
    35,426x = 77,440 × 77,440
  4. Step 4: Simplify right side
    35,426x = 5,996,953,600
  5. Step 5: Solve for x
    x = 5,996,953,600/35,426
  6. Step 6: Final answer
    x = 169,281.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.