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Finding the Fourth Proportional to 69,654.71, 96,167.45 and 51,728.60

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Solution

The fourth proportional to 69,654.71, 96,167.45 and 51,728.60 is: 71,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,654.71 : 96,167.45 = 51,728.60 : x
  2. Step 2: Convert to fraction form
    69,654.71/96,167.45 = 51,728.60/x
  3. Step 3: Cross multiply
    69,654.71x = 96,167.45 × 51,728.60
  4. Step 4: Simplify right side
    69,654.71x = 4,974,606,814.59
  5. Step 5: Solve for x
    x = 4,974,606,814.59/69,654.71
  6. Step 6: Final answer
    x = 71,418.10

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1.5x scale

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.