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Finding the Third Proportional to 29,040 and 42,440

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Solution

The third proportional to 29,040 and 42,440 is: 62,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,040 : 42,440 = 42,440 : x
  2. Step 2: Convert to fraction form
    29,040/42,440 = 42,440/x
  3. Step 3: Cross multiply
    29,040x = 42,440 × 42,440
  4. Step 4: Simplify right side
    29,040x = 1,801,153,600
  5. Step 5: Solve for x
    x = 1,801,153,600/29,040
  6. Step 6: Final answer
    x = 62,023.20

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.