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Finding the Fourth Proportional to 63,381.70, 95,060.40 and 19,009.90

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Solution

The fourth proportional to 63,381.70, 95,060.40 and 19,009.90 is: 28,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,381.70 : 95,060.40 = 19,009.90 : x
  2. Step 2: Convert to fraction form
    63,381.70/95,060.40 = 19,009.90/x
  3. Step 3: Cross multiply
    63,381.70x = 95,060.40 × 19,009.90
  4. Step 4: Simplify right side
    63,381.70x = 1,807,088,697.96
  5. Step 5: Solve for x
    x = 1,807,088,697.96/63,381.70
  6. Step 6: Final answer
    x = 28,511.21

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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.