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Finding the Fourth Proportional to 48,348, 72,554.40 and 20,652.48

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Solution

The fourth proportional to 48,348, 72,554.40 and 20,652.48 is: 30,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,348 : 72,554.40 = 20,652.48 : x
  2. Step 2: Convert to fraction form
    48,348/72,554.40 = 20,652.48/x
  3. Step 3: Cross multiply
    48,348x = 72,554.40 × 20,652.48
  4. Step 4: Simplify right side
    48,348x = 1,498,428,294.91
  5. Step 5: Solve for x
    x = 1,498,428,294.91/48,348
  6. Step 6: Final answer
    x = 30,992.56

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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.