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Finding the Fourth Proportional to 48,963.20, 73,430.40 and 19,371.20

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Solution

The fourth proportional to 48,963.20, 73,430.40 and 19,371.20 is: 29,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,963.20 : 73,430.40 = 19,371.20 : x
  2. Step 2: Convert to fraction form
    48,963.20/73,430.40 = 19,371.20/x
  3. Step 3: Cross multiply
    48,963.20x = 73,430.40 × 19,371.20
  4. Step 4: Simplify right side
    48,963.20x = 1,422,434,964.48
  5. Step 5: Solve for x
    x = 1,422,434,964.48/48,963.20
  6. Step 6: Final answer
    x = 29,051.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.