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Finding the Fourth Proportional to 71,693.63, 107,560.09 and 21,775.36

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Solution

The fourth proportional to 71,693.63, 107,560.09 and 21,775.36 is: 32,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.63 : 107,560.09 = 21,775.36 : x
  2. Step 2: Convert to fraction form
    71,693.63/107,560.09 = 21,775.36/x
  3. Step 3: Cross multiply
    71,693.63x = 107,560.09 × 21,775.36
  4. Step 4: Simplify right side
    71,693.63x = 2,342,159,439.70
  5. Step 5: Solve for x
    x = 2,342,159,439.70/71,693.63
  6. Step 6: Final answer
    x = 32,669.00

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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.