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Finding the Fourth Proportional to 70,171.65, 105,195.08 and 25,788.03

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Solution

The fourth proportional to 70,171.65, 105,195.08 and 25,788.03 is: 38,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,171.65 : 105,195.08 = 25,788.03 : x
  2. Step 2: Convert to fraction form
    70,171.65/105,195.08 = 25,788.03/x
  3. Step 3: Cross multiply
    70,171.65x = 105,195.08 × 25,788.03
  4. Step 4: Simplify right side
    70,171.65x = 2,712,773,749.95
  5. Step 5: Solve for x
    x = 2,712,773,749.95/70,171.65
  6. Step 6: Final answer
    x = 38,659.11

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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.