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Finding the Fourth Proportional to 48,384.68, 72,543 and 18,777.56

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Solution

The fourth proportional to 48,384.68, 72,543 and 18,777.56 is: 28,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,384.68 : 72,543 = 18,777.56 : x
  2. Step 2: Convert to fraction form
    48,384.68/72,543 = 18,777.56/x
  3. Step 3: Cross multiply
    48,384.68x = 72,543 × 18,777.56
  4. Step 4: Simplify right side
    48,384.68x = 1,362,180,535.08
  5. Step 5: Solve for x
    x = 1,362,180,535.08/48,384.68
  6. Step 6: Final answer
    x = 28,153.14

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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.