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Finding the Fourth Proportional to 71,842.44, 107,763.70 and 19,250.60

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Solution

The fourth proportional to 71,842.44, 107,763.70 and 19,250.60 is: 28,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,842.44 : 107,763.70 = 19,250.60 : x
  2. Step 2: Convert to fraction form
    71,842.44/107,763.70 = 19,250.60/x
  3. Step 3: Cross multiply
    71,842.44x = 107,763.70 × 19,250.60
  4. Step 4: Simplify right side
    71,842.44x = 2,074,515,883.22
  5. Step 5: Solve for x
    x = 2,074,515,883.22/71,842.44
  6. Step 6: Final answer
    x = 28,875.91

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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.