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Finding the Fourth Proportional to 70,069.88, 96,698.58 and 39,859.56

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Solution

The fourth proportional to 70,069.88, 96,698.58 and 39,859.56 is: 55,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,069.88 : 96,698.58 = 39,859.56 : x
  2. Step 2: Convert to fraction form
    70,069.88/96,698.58 = 39,859.56/x
  3. Step 3: Cross multiply
    70,069.88x = 96,698.58 × 39,859.56
  4. Step 4: Simplify right side
    70,069.88x = 3,854,362,851.42
  5. Step 5: Solve for x
    x = 3,854,362,851.42/70,069.88
  6. Step 6: Final answer
    x = 55,007.41

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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.