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Finding the Fourth Proportional to 70,169.40, 105,295.59 and 25,827.30

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Solution

The fourth proportional to 70,169.40, 105,295.59 and 25,827.30 is: 38,756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,169.40 : 105,295.59 = 25,827.30 : x
  2. Step 2: Convert to fraction form
    70,169.40/105,295.59 = 25,827.30/x
  3. Step 3: Cross multiply
    70,169.40x = 105,295.59 × 25,827.30
  4. Step 4: Simplify right side
    70,169.40x = 2,719,500,791.61
  5. Step 5: Solve for x
    x = 2,719,500,791.61/70,169.40
  6. Step 6: Final answer
    x = 38,756.22

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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.