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Finding the Fourth Proportional to 61,164.60, 91,759.62 and 19,047.72

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Solution

The fourth proportional to 61,164.60, 91,759.62 and 19,047.72 is: 28,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164.60 : 91,759.62 = 19,047.72 : x
  2. Step 2: Convert to fraction form
    61,164.60/91,759.62 = 19,047.72/x
  3. Step 3: Cross multiply
    61,164.60x = 91,759.62 × 19,047.72
  4. Step 4: Simplify right side
    61,164.60x = 1,747,811,549.07
  5. Step 5: Solve for x
    x = 1,747,811,549.07/61,164.60
  6. Step 6: Final answer
    x = 28,575.54

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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.