Home / 70,828.58-106,254.41-20,913.73

Finding the Fourth Proportional to 70,828.58, 106,254.41 and 20,913.73

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Solution

The fourth proportional to 70,828.58, 106,254.41 and 20,913.73 is: 31,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,828.58 : 106,254.41 = 20,913.73 : x
  2. Step 2: Convert to fraction form
    70,828.58/106,254.41 = 20,913.73/x
  3. Step 3: Cross multiply
    70,828.58x = 106,254.41 × 20,913.73
  4. Step 4: Simplify right side
    70,828.58x = 2,222,175,828.70
  5. Step 5: Solve for x
    x = 2,222,175,828.70/70,828.58
  6. Step 6: Final answer
    x = 31,374.00

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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.