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Finding the Fourth Proportional to 48,480.96, 72,722.88 and 18,897.60

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Solution

The fourth proportional to 48,480.96, 72,722.88 and 18,897.60 is: 28,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480.96 : 72,722.88 = 18,897.60 : x
  2. Step 2: Convert to fraction form
    48,480.96/72,722.88 = 18,897.60/x
  3. Step 3: Cross multiply
    48,480.96x = 72,722.88 × 18,897.60
  4. Step 4: Simplify right side
    48,480.96x = 1,374,287,897.09
  5. Step 5: Solve for x
    x = 1,374,287,897.09/48,480.96
  6. Step 6: Final answer
    x = 28,346.96

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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.