Home / 70,285.13-105,427.79-28,732.13

Finding the Fourth Proportional to 70,285.13, 105,427.79 and 28,732.13

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Solution

The fourth proportional to 70,285.13, 105,427.79 and 28,732.13 is: 43,098.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,285.13 : 105,427.79 = 28,732.13 : x
  2. Step 2: Convert to fraction form
    70,285.13/105,427.79 = 28,732.13/x
  3. Step 3: Cross multiply
    70,285.13x = 105,427.79 × 28,732.13
  4. Step 4: Simplify right side
    70,285.13x = 3,029,164,297.09
  5. Step 5: Solve for x
    x = 3,029,164,297.09/70,285.13
  6. Step 6: Final answer
    x = 43,098.23

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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.