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Finding the Fourth Proportional to 63,803.64, 95,710.86 and 19,430.76

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Solution

The fourth proportional to 63,803.64, 95,710.86 and 19,430.76 is: 29,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,803.64 : 95,710.86 = 19,430.76 : x
  2. Step 2: Convert to fraction form
    63,803.64/95,710.86 = 19,430.76/x
  3. Step 3: Cross multiply
    63,803.64x = 95,710.86 × 19,430.76
  4. Step 4: Simplify right side
    63,803.64x = 1,859,734,750.05
  5. Step 5: Solve for x
    x = 1,859,734,750.05/63,803.64
  6. Step 6: Final answer
    x = 29,147.78

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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.