Home / 51,442.97-70,994.06-28,780.61

Finding the Fourth Proportional to 51,442.97, 70,994.06 and 28,780.61

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Solution

The fourth proportional to 51,442.97, 70,994.06 and 28,780.61 is: 39,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,442.97 : 70,994.06 = 28,780.61 : x
  2. Step 2: Convert to fraction form
    51,442.97/70,994.06 = 28,780.61/x
  3. Step 3: Cross multiply
    51,442.97x = 70,994.06 × 28,780.61
  4. Step 4: Simplify right side
    51,442.97x = 2,043,252,353.18
  5. Step 5: Solve for x
    x = 2,043,252,353.18/51,442.97
  6. Step 6: Final answer
    x = 39,718.79

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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.