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Finding the Fourth Proportional to 53,327.98, 80,005.13 and 15,887.91

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Solution

The fourth proportional to 53,327.98, 80,005.13 and 15,887.91 is: 23,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,327.98 : 80,005.13 = 15,887.91 : x
  2. Step 2: Convert to fraction form
    53,327.98/80,005.13 = 15,887.91/x
  3. Step 3: Cross multiply
    53,327.98x = 80,005.13 × 15,887.91
  4. Step 4: Simplify right side
    53,327.98x = 1,271,114,304.98
  5. Step 5: Solve for x
    x = 1,271,114,304.98/53,327.98
  6. Step 6: Final answer
    x = 23,835.79

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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.