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Finding the Fourth Proportional to 70,067.84, 105,101.75 and 17,477.78

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Solution

The fourth proportional to 70,067.84, 105,101.75 and 17,477.78 is: 26,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,067.84 : 105,101.75 = 17,477.78 : x
  2. Step 2: Convert to fraction form
    70,067.84/105,101.75 = 17,477.78/x
  3. Step 3: Cross multiply
    70,067.84x = 105,101.75 × 17,477.78
  4. Step 4: Simplify right side
    70,067.84x = 1,836,944,782.30
  5. Step 5: Solve for x
    x = 1,836,944,782.30/70,067.84
  6. Step 6: Final answer
    x = 26,216.66

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1.5x scale

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.