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Finding the Fourth Proportional to 48,385.95, 72,583.49 and 18,806.05

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Solution

The fourth proportional to 48,385.95, 72,583.49 and 18,806.05 is: 28,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,385.95 : 72,583.49 = 18,806.05 : x
  2. Step 2: Convert to fraction form
    48,385.95/72,583.49 = 18,806.05/x
  3. Step 3: Cross multiply
    48,385.95x = 72,583.49 × 18,806.05
  4. Step 4: Simplify right side
    48,385.95x = 1,365,008,742.11
  5. Step 5: Solve for x
    x = 1,365,008,742.11/48,385.95
  6. Step 6: Final answer
    x = 28,210.85

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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.