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Finding the Fourth Proportional to 48,299.70, 72,415.80 and 28,568.10

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Solution

The fourth proportional to 48,299.70, 72,415.80 and 28,568.10 is: 42,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,299.70 : 72,415.80 = 28,568.10 : x
  2. Step 2: Convert to fraction form
    48,299.70/72,415.80 = 28,568.10/x
  3. Step 3: Cross multiply
    48,299.70x = 72,415.80 × 28,568.10
  4. Step 4: Simplify right side
    48,299.70x = 2,068,781,815.98
  5. Step 5: Solve for x
    x = 2,068,781,815.98/48,299.70
  6. Step 6: Final answer
    x = 42,832.19

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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.