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Finding the Fourth Proportional to 48,504.90, 72,669.78 and 20,374.62

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Solution

The fourth proportional to 48,504.90, 72,669.78 and 20,374.62 is: 30,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,504.90 : 72,669.78 = 20,374.62 : x
  2. Step 2: Convert to fraction form
    48,504.90/72,669.78 = 20,374.62/x
  3. Step 3: Cross multiply
    48,504.90x = 72,669.78 × 20,374.62
  4. Step 4: Simplify right side
    48,504.90x = 1,480,619,152.98
  5. Step 5: Solve for x
    x = 1,480,619,152.98/48,504.90
  6. Step 6: Final answer
    x = 30,525.15

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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.