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Finding the Fourth Proportional to 48,395.80, 72,559.38 and 18,788.68

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Solution

The fourth proportional to 48,395.80, 72,559.38 and 18,788.68 is: 28,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,395.80 : 72,559.38 = 18,788.68 : x
  2. Step 2: Convert to fraction form
    48,395.80/72,559.38 = 18,788.68/x
  3. Step 3: Cross multiply
    48,395.80x = 72,559.38 × 18,788.68
  4. Step 4: Simplify right side
    48,395.80x = 1,363,294,971.82
  5. Step 5: Solve for x
    x = 1,363,294,971.82/48,395.80
  6. Step 6: Final answer
    x = 28,169.70

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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.