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Finding the Fourth Proportional to 70,086.69, 105,067.51 and 25,703.07

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Solution

The fourth proportional to 70,086.69, 105,067.51 and 25,703.07 is: 38,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,086.69 : 105,067.51 = 25,703.07 : x
  2. Step 2: Convert to fraction form
    70,086.69/105,067.51 = 25,703.07/x
  3. Step 3: Cross multiply
    70,086.69x = 105,067.51 × 25,703.07
  4. Step 4: Simplify right side
    70,086.69x = 2,700,557,564.26
  5. Step 5: Solve for x
    x = 2,700,557,564.26/70,086.69
  6. Step 6: Final answer
    x = 38,531.68

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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.