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Finding the Fourth Proportional to 71,923.78, 107,885.52 and 19,333.27

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Solution

The fourth proportional to 71,923.78, 107,885.52 and 19,333.27 is: 28,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,923.78 : 107,885.52 = 19,333.27 : x
  2. Step 2: Convert to fraction form
    71,923.78/107,885.52 = 19,333.27/x
  3. Step 3: Cross multiply
    71,923.78x = 107,885.52 × 19,333.27
  4. Step 4: Simplify right side
    71,923.78x = 2,085,779,887.25
  5. Step 5: Solve for x
    x = 2,085,779,887.25/71,923.78
  6. Step 6: Final answer
    x = 28,999.86

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1.5x scale

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.