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Finding the Fourth Proportional to 70,264.54, 105,396.99 and 28,711.54

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Solution

The fourth proportional to 70,264.54, 105,396.99 and 28,711.54 is: 43,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,264.54 : 105,396.99 = 28,711.54 : x
  2. Step 2: Convert to fraction form
    70,264.54/105,396.99 = 28,711.54/x
  3. Step 3: Cross multiply
    70,264.54x = 105,396.99 × 28,711.54
  4. Step 4: Simplify right side
    70,264.54x = 3,026,109,894.26
  5. Step 5: Solve for x
    x = 3,026,109,894.26/70,264.54
  6. Step 6: Final answer
    x = 43,067.38

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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.