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Finding the Fourth Proportional to 45,388.80, 62,637.76 and 27,480

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Solution

The fourth proportional to 45,388.80, 62,637.76 and 27,480 is: 37,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,388.80 : 62,637.76 = 27,480 : x
  2. Step 2: Convert to fraction form
    45,388.80/62,637.76 = 27,480/x
  3. Step 3: Cross multiply
    45,388.80x = 62,637.76 × 27,480
  4. Step 4: Simplify right side
    45,388.80x = 1,721,285,644.80
  5. Step 5: Solve for x
    x = 1,721,285,644.80/45,388.80
  6. Step 6: Final answer
    x = 37,923.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.