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Finding the Fourth Proportional to 56,342.63, 84,500.11 and 18,901.87

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Solution

The fourth proportional to 56,342.63, 84,500.11 and 18,901.87 is: 28,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,342.63 : 84,500.11 = 18,901.87 : x
  2. Step 2: Convert to fraction form
    56,342.63/84,500.11 = 18,901.87/x
  3. Step 3: Cross multiply
    56,342.63x = 84,500.11 × 18,901.87
  4. Step 4: Simplify right side
    56,342.63x = 1,597,209,906.58
  5. Step 5: Solve for x
    x = 1,597,209,906.58/56,342.63
  6. Step 6: Final answer
    x = 28,348.16

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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.