Home / 51,639.80-71,257.07-28,974.07

Finding the Fourth Proportional to 51,639.80, 71,257.07 and 28,974.07

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Solution

The fourth proportional to 51,639.80, 71,257.07 and 28,974.07 is: 39,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.80 : 71,257.07 = 28,974.07 : x
  2. Step 2: Convert to fraction form
    51,639.80/71,257.07 = 28,974.07/x
  3. Step 3: Cross multiply
    51,639.80x = 71,257.07 × 28,974.07
  4. Step 4: Simplify right side
    51,639.80x = 2,064,606,833.02
  5. Step 5: Solve for x
    x = 2,064,606,833.02/51,639.80
  6. Step 6: Final answer
    x = 39,980.92

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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.