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Finding the Fourth Proportional to 69,711.71, 96,194.34 and 39,490.56

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Solution

The fourth proportional to 69,711.71, 96,194.34 and 39,490.56 is: 54,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,711.71 : 96,194.34 = 39,490.56 : x
  2. Step 2: Convert to fraction form
    69,711.71/96,194.34 = 39,490.56/x
  3. Step 3: Cross multiply
    69,711.71x = 96,194.34 × 39,490.56
  4. Step 4: Simplify right side
    69,711.71x = 3,798,767,973.19
  5. Step 5: Solve for x
    x = 3,798,767,973.19/69,711.71
  6. Step 6: Final answer
    x = 54,492.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.